APA (7th ed.) Citation

Lawson, H. C. (1969). Book of cacti: For the amateur collector. Educator Books.

Chicago Style (17th ed.) Citation

Lawson, Harry C. Book of Cacti: For the Amateur Collector. San Angelo, Tex: Educator Books, 1969.

MLA (9th ed.) Citation

Lawson, Harry C. Book of Cacti: For the Amateur Collector. Educator Books, 1969.