APA (7th ed.) Citation

Weaver, E. C. (1972). What is a gas?: A find-out book, demonstrations, experiments, ideas. Educational Services, American Gas Association.

Chicago Style (17th ed.) Citation

Weaver, Elbert Cook. What Is a Gas?: A Find-out Book, Demonstrations, Experiments, Ideas. Arlington, Va.: Educational Services, American Gas Association, 1972.

MLA (9th ed.) Citation

Weaver, Elbert Cook. What Is a Gas?: A Find-out Book, Demonstrations, Experiments, Ideas. Educational Services, American Gas Association, 1972.