Cita APA (7th ed.)

Hudak, P. F. (2009). Physical geology: Laboratory manual (Seventeenth edition.). Stipes Publishing L.L.C.

Cita Chicago (17th ed.)

Hudak, Paul F. Physical Geology: Laboratory Manual. Seventeenth edition. [Place of publication not identified]: Stipes Publishing L.L.C, 2009.

Cita MLA (9th ed.)

Hudak, Paul F. Physical Geology: Laboratory Manual. Seventeenth edition. Stipes Publishing L.L.C, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.