MLA

Brown, Theo Ann, et al. Plagioclase. 1975.

APA

Brown, T. Ann, Jan Fenner, J. Fenner, Sue Calebaugh, S. Calebaugh, Elizabeth Gottlieb, E. Gottlieb, Phyllis Curran, P. Curran, & Mary Ann Hart, M. Ann Hart. (1975). Plagioclase. .

Chicago

Brown, Theo Ann, Jan Fenner, Sue Calebaugh, Elizabeth Gottlieb, Phyllis Curran, and Mary Ann Hart. Plagioclase.