APA aipamena

Montgomery, C. W., & Dathe, D. (1994). Earth, then and now (2nd ed.). W. C. Brown.

Chicago Style aipamena

Montgomery, Carla W., and David Dathe. Earth, Then and Now. 2nd ed. Dubuque, Iowa: W. C. Brown, 1994.

MLA aipamena

Montgomery, Carla W., and David Dathe. Earth, Then and Now. 2nd ed. W. C. Brown, 1994.