Cita APA (7th ed.)

Association, N. S. T. (1969). How to do it series. NSTA.

Cita Chicago (17th ed.)

Association, National Science Teachers. How to Do It Series. Washington, D.C: NSTA, 1969.

Cita MLA (9th ed.)

Association, National Science Teachers. How to Do It Series. NSTA, 1969.