APA Edition Citation

Ahlgren, G. H. (1956). Forage crops (2nd. ed.). McGraw-Hill.

Chicago Edition Citation

Ahlgren, Gilbort H. Forage Crops. 2nd. ed. New York: McGraw-Hill, 1956.

MLA Edition Citation

Ahlgren, Gilbort H. Forage Crops. 2nd. ed. McGraw-Hill, 1956.