APA (7th ed.) Citation

Campbell, D. M. (1997). How to develop a professional portfolio: A manual for teachers. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Campbell, Dorothy M. How to Develop a Professional Portfolio: A Manual for Teachers. Boston: Allyn and Bacon, 1997.

MLA (9th ed.) Citation

Campbell, Dorothy M. How to Develop a Professional Portfolio: A Manual for Teachers. Allyn and Bacon, 1997.