Cita APA (7a ed.)

Namowitz, S. N. (1975). Activities in earth science (5. ed.). American Book Comp.

Cita Chicago Style (17a ed.)

Namowitz, Samuel N. Activities in Earth Science. 5. ed. New York [u.a.]: American Book Comp, 1975.

Cita MLA (9a ed.)

Namowitz, Samuel N. Activities in Earth Science. 5. ed. American Book Comp, 1975.