Roy Luther Donahue has written:
'Estimates of fertiliser consumption in India in 1970-71 (as of April 1, 1966)' -- subject(s): Fertilizer industry
'Soils of Equatorial Africa and their revelance to rational agricultural development' -- subject(s): Soils, Africa
'Ethiopia: taxonomy, cartography, and ecology of soils' -- subject(s): Soils
'Exploring agriculture' -- subject(s): Agriculture
Roy Howard has written: '\\'
Roy Neily has written: 'Rajvara : \\'
Roy McDonald has written: 'The answer questioned'
Roy Wright has written: 'Memoir'
Roy Fox has written: 'Technology'
Roy Gardner has written: 'Hellcatraz'
Roy Teranishi has written: 'Flavor research'
Anupama Roy has written: 'Gendered Citizenship'
Roy Wilbraham has written: 'Milt Jackson'
Kshitis Roy has written: 'Gaganendranath Tagore'
Roy Twitchin has written: 'Starters' 'Primetime'
Roy Isaksson has written: 'I detta nu'