Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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