APA (7e ed.) Bronvermelding

National Science Teachers Association. (1985). Science fairs and projects (Rev. version.). National Science Teachers Association.

Chicago (17e ed.) Bronvermelding

National Science Teachers Association. Science Fairs and Projects. Rev. version. Washington: National Science Teachers Association, 1985.

MLA (9e ed.) Bronvermelding

National Science Teachers Association. Science Fairs and Projects. Rev. version. National Science Teachers Association, 1985.