APA (7th ed.) Citation

Horn, T. M. (1993). Working with DNA and bacteria in precollege science classroom. National Association of Biology Teachers.

Chicago Style (17th ed.) Citation

Horn, Toby M. Working with DNA and Bacteria in Precollege Science Classroom. Reston, VA: National Association of Biology Teachers, 1993.

MLA (9th ed.) Citation

Horn, Toby M. Working with DNA and Bacteria in Precollege Science Classroom. National Association of Biology Teachers, 1993.