APA ציטוט

Curtiss, R., & Moulton, J. E. (1942). Essentials of trigonometry with applications. Boston: Heath and Company.

Παραπομπή Chicago Style

Curtiss, Raymond, και James Elton Moulton. Essentials of Trigonometry With Applications. Boston: Heath and Company, 1942.

ציטוט MLA

Curtiss, Raymond, και James Elton Moulton. Essentials of Trigonometry With Applications. Boston: Heath and Company, 1942.