Cita APA (7th ed.)

MacCracken, H. D. (1964). Basic earth science. L.W. Singer.

Cita Chicago (17th ed.)

MacCracken, Helen Dolman. Basic Earth Science. Syracuse: L.W. Singer, 1964.

Cita MLA (9th ed.)

MacCracken, Helen Dolman. Basic Earth Science. L.W. Singer, 1964.