Cita APA (7a ed.)

Milliken, R., & Schwitalla, A. W. (2012). California and Great Basin olivella shell bead guide. Left Coast Press.

Cita Chicago Style (17a ed.)

Milliken, Randall, y Al W. Schwitalla. California and Great Basin Olivella Shell Bead Guide. Walnut Creek, CA: Left Coast Press, 2012.

Cita MLA (9a ed.)

Milliken, Randall, y Al W. Schwitalla. California and Great Basin Olivella Shell Bead Guide. Left Coast Press, 2012.