APA (7th ed.) Citation

Sparks, F. W., & Rees, P. K. (1966). Trigonometría plana. Reverté Mexicana.

Chicago Style (17th ed.) Citation

Sparks, Fred W., and Paul K. Rees. Trigonometría Plana. Reverté Mexicana, 1966.

MLA (9th ed.) Citation

Sparks, Fred W., and Paul K. Rees. Trigonometría Plana. Reverté Mexicana, 1966.

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