APA-referens (7:e uppl.)

Piper, M. K. (1977). Attitudes toward science: Investigations. ERIC.

Chicago-referens (17:e uppl.)

Piper, Martha K. Attitudes Toward Science: Investigations. Ohio, Estados Unidos: ERIC, 1977.

MLA-referens (9:e uppl.)

Piper, Martha K. Attitudes Toward Science: Investigations. ERIC, 1977.