APA-viite

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

Chicago-tyylinen lähdeviittaus

International Grassland Congress Pennsylvania, ja International Grassland Congress. Proceedings of the Sixth International Grassland Congress. Pennsylvania: Pennsylvania State College, 1952.

MLA-viite

International Grassland Congress Pennsylvania, ja International Grassland Congress. Proceedings of the Sixth International Grassland Congress. Pennsylvania: Pennsylvania State College, 1952.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.