Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.