APA (7th ed.) Citation

Abbott, P. W. H. (1940). Teach yourself trigonometry / by P. Abbott. E.U.P..

Chicago Style (17th ed.) Citation

Abbott, Percy William Henry. Teach Yourself Trigonometry / by P. Abbott. E.U.P., 1940.

MLA (9th ed.) Citation

Abbott, Percy William Henry. Teach Yourself Trigonometry / by P. Abbott. E.U.P., 1940.

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