APA-referens (7:e uppl.)

Chitty, C., & Butterfield, S. (1993). The National Curriculum: Is it workingn. Longman.

Chicago-referens (17:e uppl.)

Chitty, Clyde, och Sue Butterfield. The National Curriculum: Is It Workingn. Harlow, Essex, Eng: Longman, 1993.

MLA-referens (9:e uppl.)

Chitty, Clyde, och Sue Butterfield. The National Curriculum: Is It Workingn. Longman, 1993.