Cita APA (7a ed.)

Loflin, B., & Loflin, S. (2009). Texas Cacti: A Field Guide. Texas A&M University Press.

Cita Chicago Style (17a ed.)

Loflin, Brian, y Shirley Loflin. Texas Cacti: A Field Guide. College Station: Texas A&M University Press, 2009.

Cita MLA (8a ed.)

Loflin, Brian, y Shirley Loflin. Texas Cacti: A Field Guide. Texas A&M University Press, 2009.