Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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