APA (7th ed.) Citation

Rivas López, J. A. (1970). Learning English. Book one. Bello.

Chicago Style (17th ed.) Citation

Rivas López, Juan Antonio. Learning English. Book One. Valencia: Bello, 1970.

MLA (9th ed.) Citation

Rivas López, Juan Antonio. Learning English. Book One. Bello, 1970.

Warning: These citations may not always be 100% accurate.