Carlton, K., & Parkinson, E. (1994). Physical sciences: A primary teacher's guide. Cassell.
Chicago Style aipamenaCarlton, Kevin, and Eric Parkinson. Physical Sciences: A Primary Teacher's Guide. London ; New York: Cassell, 1994.
MLA aipamenaCarlton, Kevin, and Eric Parkinson. Physical Sciences: A Primary Teacher's Guide. Cassell, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.