APA (7th ed.) Citation

Ritzenthaler, R. E. (1967). A guide to Wisconsin Indian projectile point types. Milwaukee Public Museum.

Chicago Style (17th ed.) Citation

Ritzenthaler, Robert E. A Guide to Wisconsin Indian Projectile Point Types. [Milwaukee, Wis.]: Milwaukee Public Museum, 1967.

MLA (9th ed.) Citation

Ritzenthaler, Robert E. A Guide to Wisconsin Indian Projectile Point Types. Milwaukee Public Museum, 1967.