Piper, M. K. (1977). Attitudes toward science: Investigations. ERIC.
Lua i Stíl Chicago (17ú heag.)Piper, Martha K. Attitudes Toward Science: Investigations. Ohio, Estados Unidos: ERIC, 1977.
Lua MLA (9ú heag.)Piper, Martha K. Attitudes Toward Science: Investigations. ERIC, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.