APA
Hurd R G Ed, Association of applied biology on opptunities for increasing crop yield (1979 : London) & Biscoe P V Ed. (1980). Proceedings on opportunities for increasing crop yields. Boston: Pitman.
Chicago
Hurd R G Ed, Association of applied biology on opptunities for increasing crop yield (1979 : London) and Biscoe P V Ed. 1980. Proceedings on opportunities for increasing crop yields. Boston: Pitman.
Harvard
Hurd R G Ed, Association of applied biology on opptunities for increasing crop yield (1979 : London) and Biscoe P V Ed. (1980). Proceedings on opportunities for increasing crop yields. Boston: Pitman.
MLA
Hurd R G Ed, Association of applied biology on opptunities for increasing crop yield (1979 : London) and Biscoe P V Ed. Proceedings on opportunities for increasing crop yields. Boston: Pitman. 1980.
