Cita APA (7a ed.)

Tyrrell, J., & Semple, J. (1971). Generalized clifford parallelism. Cambridge at The University Press.

Cita Chicago Style (17a ed.)

Tyrrell, J.A, y J.G Semple. Generalized Clifford Parallelism. London: Cambridge at The University Press, 1971.

Cita MLA (8a ed.)

Tyrrell, J.A, y J.G Semple. Generalized Clifford Parallelism. Cambridge at The University Press, 1971.