APA aipamena

Otho E. Perkins. (1981). Teacher's guide: Work-a-text in physical science. New York: Globe Book.

Chicago Style aipamena

Otho E. Perkins. Teacher's Guide: Work-a-text in Physical Science. New York: Globe Book, 1981.

MLA aipamena

Otho E. Perkins. Teacher's Guide: Work-a-text in Physical Science. New York: Globe Book, 1981.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.