Cita APA (7th ed.)

Skinner, B. J. (1980). earth's history structure and materials. William Kaufmann.

Cita Chicago (17th ed.)

Skinner, Brian J. Earth's History Structure and Materials. Los Altos: William Kaufmann, 1980.

Cita MLA (9th ed.)

Skinner, Brian J. Earth's History Structure and Materials. William Kaufmann, 1980.