Spellman, B. J. (1960). Laboratory exercises in physical geography (Revised ed.). St. Norbert College.
Chicagoスタイル(17版)引用形式Spellman, Boniface J. Laboratory Exercises in Physical Geography. Revised ed. [De Pere, Wis.]: St. Norbert College, 1960.
MLA(8版)引用形式Spellman, Boniface J. Laboratory Exercises in Physical Geography. Revised ed. St. Norbert College, 1960.
警告: この引用は必ずしも正確ではありません.