If your poems have previously been published between 1982 and 1986 and you wish to self-publish these poems in a new collection you may have to acquire permission. It depends upon the agreement with the previous publisher.
If you are self-publishing a collection of your poems and they were published between 1982 and 1986 you may need to get permission from the previous published before publishing.
Yes, self-plagiarism occurs when you reuse your own previously published work without proper citation or acknowledgment.
I don't know when exactly this short story was published, but "From Dubliners", the collection it was published in, was published in 1914.
You will need to very closely read the agreement you reached with the publisher; it almost certainly spells out the rights for future uses. If for example you transferred your rights to the publisher, you will now need permission from them to re-use your own material.
A back volume refers to a collection of previously published issues of a journal or magazine. It typically includes all issues published before the most recent one. Researchers often refer to back volumes to access historical articles or older publications.
it was published in 1958 in Neruda's collection called Extravagaria.
His first poems were published in 1916 in a collection titled "Golden Threshold."
It was in the collection book Different Seasons published in 1982
By "Shakespeare's first edition" I assume you mean the First Folio, the first compilation of his plays. About half of the plays in the First Folio had been previously published, some several times. As well, the collection of his sonnets was also published during his lifetime. The First Folio, compiled by his friends Heminges and Condell, was published in 1623, seven years after his death, and contained 36 plays of the 38 generally accepted to be his. (The two plays missing from the collection are Pericles Prince of Tyre and The Two Noble Kinsmen.)
Gregg Shapiro published his collection of poems called "Tattoo" in 1990.
writing the same report twice
If was published, as part of a collection called Rewards and Fairies in 1910