Cita APA (7th ed.)

Snapper, E., & Troyer, R. J. (1971). Metric affine geometry. Academic Press.

Cita Chicago (17th ed.)

Snapper, Ernst, i Robert J. Troyer. Metric Affine Geometry. Nueva York: Academic Press, 1971.

Cita MLA (9th ed.)

Snapper, Ernst, i Robert J. Troyer. Metric Affine Geometry. Academic Press, 1971.