APA (7th ed.) Citation

Hardy, H. R. (1972). A study to evaluate the stability of underground gas storage reservoirs. American Gas Association.

Chicago Style (17th ed.) Citation

Hardy, H. Reginald. A Study to Evaluate the Stability of Underground Gas Storage Reservoirs. Arlington, Va.: American Gas Association, 1972.

MLA (9th ed.) Citation

Hardy, H. Reginald. A Study to Evaluate the Stability of Underground Gas Storage Reservoirs. American Gas Association, 1972.