Citazione Stile APA (7a Edizione)

Sheldon, D. S., & Penick, J. E. (1991). Favorite labs from outstanding teachers, vol.1. National Association of Biology Teachers.

Citazione stile Chigago Style (17a edizione)

Sheldon, Daniel S., e John E. Penick. Favorite Labs from Outstanding Teachers, Vol.1. Reston, VA: National Association of Biology Teachers, 1991.

Citatione MLA (9a ed.)

Sheldon, Daniel S., e John E. Penick. Favorite Labs from Outstanding Teachers, Vol.1. National Association of Biology Teachers, 1991.