APA (7th ed.) Citation

GEHRMANN, J., & Lester,Tomas. (1988). Trigonometría. HBJ.

Chicago Style (17th ed.) Citation

GEHRMANN, James, and Lester,Tomas. Trigonometría. San Diego: HBJ, 1988.

MLA (9th ed.) Citation

GEHRMANN, James, and Lester,Tomas. Trigonometría. HBJ, 1988.

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