APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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