Cita APA (7th ed.)
Wiggins, A. W. (1974). Physical science: With enviromental applications. Houghton Mifflin Co..
Cita Chicago (17th ed.)
Wiggins, Arthur W. Physical Science: With Enviromental Applications. London: Houghton Mifflin Co., 1974.
Cita MLA (9th ed.)
Wiggins, Arthur W. Physical Science: With Enviromental Applications. Houghton Mifflin Co., 1974.
Atenció: Aquestes cites poden no estar 100% correctes.