APA

Kerr P. F., Hamilton P. K., Kulp J. L. & American Petroleum Institute. (1951). Preliminary reports reference clay minerals. New-York: Columbia University.

Chicago

Kerr Paul F, Hamilton Peggy K, Kulp John Laurence and American Petroleum Institute. 1951. Preliminary reports reference clay minerals. New-York: Columbia University.

Harvard

Kerr P. F., Hamilton P. K., Kulp J. L. and American Petroleum Institute. (1951). Preliminary reports reference clay minerals. New-York: Columbia University.

MLA

Kerr Paul F, Hamilton Peggy K, Kulp John Laurence and American Petroleum Institute. Preliminary reports reference clay minerals. New-York: Columbia University. 1951.