Tuttle, S. D. (1975). Landforms and landscapes (2d ed.). W. C. Brown Co..
Citación estilo ChicagoTuttle, Sherwood D. Landforms and Landscapes. 2d ed. Dubuque, Iowa: W. C. Brown Co., 1975.
Cita MLATuttle, Sherwood D. Landforms and Landscapes. 2d ed. W. C. Brown Co., 1975.
Warning: These citations may not always be 100% accurate.