Stepp, A., & Bolian, P. (1966). Setting up a science project. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Stepp, Ann, agus Polly Bolian. Setting Up a Science Project. Englewood Cliffs, N.J.: Prentice-Hall, 1966.
Lua MLA (8ú heag.)Stepp, Ann, agus Polly Bolian. Setting Up a Science Project. Prentice-Hall, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.