APA
Savidge J., Starling K., American Gas Association A. T. M. C., American Petroleum Institute A., American Gas Association A., Savidge J., Starling K., American Petroleum Institute A. & American Gas Association A. (1994). Compressibility factors of natural gas and other related hydrocarbon gases. Arlington: American Gas Association, AGA.
Chicago
Savidge J.L, Starling K.E, American Gas Association AGA Transmission Measurement Comittee, American Petroleum Institute API, American Gas Association AGA, Savidge J.L, Starling K.E, American Petroleum Institute API and American Gas Association AGA. 1994. Compressibility factors of natural gas and other related hydrocarbon gases. Arlington: American Gas Association, AGA.
Harvard
Savidge J., Starling K., American Gas Association A. T. M. C., American Petroleum Institute A., American Gas Association A., Savidge J., Starling K., American Petroleum Institute A. and American Gas Association A. (1994). Compressibility factors of natural gas and other related hydrocarbon gases. Arlington: American Gas Association, AGA.
MLA
Savidge J.L, Starling K.E, American Gas Association AGA Transmission Measurement Comittee, American Petroleum Institute API, American Gas Association AGA, Savidge J.L, Starling K.E, American Petroleum Institute API and American Gas Association AGA. Compressibility factors of natural gas and other related hydrocarbon gases. Arlington: American Gas Association, AGA. 1994.