Cita APA (7th ed.)

Allen, R. D., & Stroup, D. J. (1993). Teaching critical thinking skills in biology. National Association of Biology (NABT).

Cita Chicago (17th ed.)

Allen, Robert D., i David J. Stroup. Teaching Critical Thinking Skills in Biology. Reston, VA: National Association of Biology (NABT), 1993.

Cita MLA (9th ed.)

Allen, Robert D., i David J. Stroup. Teaching Critical Thinking Skills in Biology. National Association of Biology (NABT), 1993.