APA

Smith R. E., Willey G. R. & Gifford J. G. (1959). Ceramic types and varieties in Maya pottery. Cambridge: Harvard University.

Chicago

Smith Robert E, Willey Gordon R and Gifford James G. 1959. Ceramic types and varieties in Maya pottery. Cambridge: Harvard University.

Harvard

Smith R. E., Willey G. R. and Gifford J. G. (1959). Ceramic types and varieties in Maya pottery. Cambridge: Harvard University.

MLA

Smith Robert E, Willey Gordon R and Gifford James G. Ceramic types and varieties in Maya pottery. Cambridge: Harvard University. 1959.