Penggayaan APA

Freeman, Otis W., Raup, H. F.. (1959). Essential of Geography (2). USA: Mc Graw Hill.

Chicago Style

Freeman, Otis W., Raup, H. F.. Essential of Geography. 2 USA: Mc Graw Hill, 1959. Text.

MLA Style

Freeman, Otis W., Raup, H. F.. Essential of Geography. 2 USA: Mc Graw Hill, 1959. Text.

Turabian Style

Freeman, Otis W., Raup, H. F.. Essential of Geography. 2 USA: Mc Graw Hill, 1959. Print.