Educational Services Incorporated. (1967). Introductory physical science. Prentice-Hall.
Citazione stile Chigago Style (17a edizione)Educational Services Incorporated. Introductory Physical Science. Englewood Cliff, NJ: Prentice-Hall, 1967.
Citatione MLA (9a ed.)Educational Services Incorporated. Introductory Physical Science. Prentice-Hall, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.