Gaya APA
Skerman, P., Riveros, F. (1977).
Tropical Forage Legumes .
Roma:
Food & Agriiculture Organzation of the United Nations Rome.
Gaya MLA
Skerman, P.J.., Riveros, Fernando.
"Tropical Forage Legumes".
Roma:
Food & Agriiculture Organzation of the United Nations Rome,
1977.
Text.