Cita APA (7a ed.)

Smeck, N. E., & Ciolkosz, E. J. (1989). Fragipans: Their ocurrence, classification, and genesis (1st edition.). ASA : SSSA : CSSA.

Cita Chicago Style (17a ed.)

Smeck, Neil E., y Edward J. Ciolkosz. Fragipans: Their Ocurrence, Classification, and Genesis. 1st edition. Madison, Wisconsin: ASA : SSSA : CSSA, 1989.

Cita MLA (8a ed.)

Smeck, Neil E., y Edward J. Ciolkosz. Fragipans: Their Ocurrence, Classification, and Genesis. 1st edition. ASA : SSSA : CSSA, 1989.