APA (7th ed.) Citation

Portnoy, K. (1991). Screen adaptation: : a scriptwriting handbook. Focal.

Chicago Style (17th ed.) Citation

Portnoy, Kenneth. Screen Adaptation: : A Scriptwriting Handbook. Boston ; London: Focal, 1991.

MLA (9th ed.) Citation

Portnoy, Kenneth. Screen Adaptation: : A Scriptwriting Handbook. Focal, 1991.

Warning: These citations may not always be 100% accurate.