Cita APA (7a ed.)
Ziegenfus, R. C. (Aug89). ATLAS∗GRAPHICS. Professional Geographer, 41(3), 367-369.
Cita Chicago Style (17a ed.)
Ziegenfus, Robert C. "ATLAS∗GRAPHICS." Professional Geographer 41, no. 3 (Aug89): 367-369.
Cita MLA (9a ed.)
Ziegenfus, Robert C. "ATLAS∗GRAPHICS." Professional Geographer, vol. 41, no. 3, Aug89, pp. 367-369.
Precaución: Estas citas no son 100% exactas.