APA aipamena

Kessler, J., & James Kessler; Ann Benbrow; Terry Sweitzer. (1997). The: Elementary science activities. Albany: Delmar Publishers.

Chicago Style aipamena

Kessler, James, và James Kessler; Ann Benbrow; Terry Sweitzer. The: Elementary Science Activities. Albany: Delmar Publishers, 1997.

MLA aipamena

Kessler, James, và James Kessler; Ann Benbrow; Terry Sweitzer. The: Elementary Science Activities. Albany: Delmar Publishers, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.