Cita APA (7th ed.)
Bernstein, L., Schachter, M., & Winkler, A. (2004). Earth and space. Globe Fearon.
Cita Chicago (17th ed.)
Bernstein, Leonard, Martin Schachter, i Alan Winkler. Earth and Space. United State: Globe Fearon, 2004.
Cita MLA (9th ed.)
Bernstein, Leonard, et al. Earth and Space. Globe Fearon, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.