Educational Services Incorporated. (1967). Introductory physical science. Prentice-Hall.
Chicago-referens (17:e uppl.)Educational Services Incorporated. Introductory Physical Science. Englewood Cliff, NJ: Prentice-Hall, 1967.
MLA-referens (9:e uppl.)Educational Services Incorporated. Introductory Physical Science. Prentice-Hall, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.