APA-referens

International Grassland Congress Pennsylvania, & International Grassland Congress. (1952). Proccedings of the sixth international grassland congress. Pennsylvania: Pennsylvania State College.

Chicago-stil citat

International Grassland Congress Pennsylvania, och International Grassland Congress. Proccedings of the Sixth International Grassland Congress. Pennsylvania: Pennsylvania State College, 1952.

MLA-referens

International Grassland Congress Pennsylvania, och International Grassland Congress. Proccedings of the Sixth International Grassland Congress. Pennsylvania: Pennsylvania State College, 1952.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.