APA (7e ed.) Bronvermelding

Perkins, D. (2002). Mineralogy (2nd ed.). Prentice-Hall.

Chicago (17e ed.) Bronvermelding

Perkins, Dexter. Mineralogy. 2nd ed. Upper Saddle River, N.J: Prentice-Hall, 2002.

MLA (9e ed.) Bronvermelding

Perkins, Dexter. Mineralogy. 2nd ed. Prentice-Hall, 2002.