APA-referens (7:e uppl.)

Spellman, B. J. (1960). Laboratory exercises in physical geography (Revised ed.). St. Norbert College.

Chicago-referens (17:e uppl.)

Spellman, Boniface J. Laboratory Exercises in Physical Geography. Revised ed. [De Pere, Wis.]: St. Norbert College, 1960.

MLA-referens (8:e uppl.)

Spellman, Boniface J. Laboratory Exercises in Physical Geography. Revised ed. St. Norbert College, 1960.