APA aipamena

Purkey, W. W. (1970). Self concept and school achievement. Prentice Hall.

Chicago Style aipamena

Purkey, William Watson. Self Concept and School Achievement. Prentice Hall, 1970.

MLA aipamena

Purkey, William Watson. Self Concept and School Achievement. Prentice Hall, 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.