It means, ...our culture is a... OR ...our culture is one... It could also be a declarative sentence: Our culture is one.
Por una tierra nuestra was created in 1985.
Por una tierra nuestra - 1985 is rated/received certificates of: Argentina:Atp
"Una botella" means "on bottle" in English.
"Una cuadernos" is not grammatically correct in Spanish. "Una cuaderno" would mean "a notebook" in English.
"Una pregunta" means "a question" in English.
"Una llegada" translates to "an arrival" in English.
"Una silla" translates to "a chair" in English.
Una mano is Spanish for 'a hand'
Una bolsa is spanish for "a bag"
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"Una estudiante" in English means "a student" or "a female student."
"No soy una señorita" means "I am not a lady" in English.