Cita APA (7th ed.)

Stokes, W. L., & Judson, S. (1968). Introduction to geology, physical and historical. Prentice-Hall.

Cita Chicago (17th ed.)

Stokes, William Lee, i Sheldon Judson. Introduction to Geology, Physical and Historical. Englewood Cliffs, N.J: Prentice-Hall, 1968.

Cita MLA (9th ed.)

Stokes, William Lee, i Sheldon Judson. Introduction to Geology, Physical and Historical. Prentice-Hall, 1968.