Cita APA (7a ed.)

Angel, R. B. (1980). Relativity, the theory and its philosophy. Pergamon Press.

Cita Chicago Style (17a ed.)

Angel, Roger B. Relativity, the Theory and Its Philosophy. Oxford ; New York: Pergamon Press, 1980.

Cita MLA (8a ed.)

Angel, Roger B. Relativity, the Theory and Its Philosophy. Pergamon Press, 1980.