APA (7th ed.) Citation

Pendray, G. E. (1929). The earth-tube. D. Appleton & Co..

Chicago Style (17th ed.) Citation

Pendray, G. Edward. The Earth-tube. New York: D. Appleton & Co., 1929.

MLA (9th ed.) Citation

Pendray, G. Edward. The Earth-tube. D. Appleton & Co., 1929.

Warning: These citations may not always be 100% accurate.