APA (7th ed.) Zitazioa
Huffman, W. E., & Evenson, R. E. (2006). Science for agriculture: A long-term perspective (2nd ed.). Blackwell Pub..
Chicago Style (17th ed.) Zitazioa
Huffman, Wallace E., eta Robert E. Evenson. Science for Agriculture: A Long-term Perspective. 2nd ed. Ames, Iowa: Blackwell Pub., 2006.
MLA (9th ed.) Zitazioa
Huffman, Wallace E., eta Robert E. Evenson. Science for Agriculture: A Long-term Perspective. 2nd ed. Blackwell Pub., 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.