Cita APA (7a ed.)

Monjarás-Ruiz, J. (1979). Sobre Ted J. J. Leyenaar, Ulama - The perpetuation in Mexico of the Pre-Spanish ball game ullamaliztli. El Colegio de México, A.C.

Cita Chicago Style (17a ed.)

Monjarás-Ruiz, Jesús. Sobre Ted J. J. Leyenaar, Ulama - The Perpetuation in Mexico of the Pre-Spanish Ball Game Ullamaliztli. El Colegio de México, A.C, 1979.

Cita MLA (9a ed.)

Monjarás-Ruiz, Jesús. Sobre Ted J. J. Leyenaar, Ulama - The Perpetuation in Mexico of the Pre-Spanish Ball Game Ullamaliztli. El Colegio de México, A.C, 1979.