Pennsylvania State University. Mineral Industries Extension Services, Stephens, M. M., & Spencer, O. F. (1954). Natural gas engineering (3d ed.). [publisher not identified].
Chicago Style (17th ed.) CitationPennsylvania State University. Mineral Industries Extension Services, Maynard Moody Stephens, and Oscar Fritzland Spencer. Natural Gas Engineering. 3d ed. State College, Pa.: [publisher not identified], 1954.
MLA (9th ed.) CitationPennsylvania State University. Mineral Industries Extension Services, et al. Natural Gas Engineering. 3d ed. [publisher not identified], 1954.
Warning: These citations may not always be 100% accurate.