APA

Collins J. H., Bisson E. E. & Schmiedlin R. F. (1945). Nitrided steel piston rings for engines of high specific power. Washington, DC: U.S. Gov. Print. Office.

Chicago

Collins John H, Bisson Edmond E and Schmiedlin Ralph F. 1945. Nitrided steel piston rings for engines of high specific power. Washington, DC: U.S. Gov. Print. Office.

Harvard

Collins J. H., Bisson E. E. and Schmiedlin R. F. (1945). Nitrided steel piston rings for engines of high specific power. Washington, DC: U.S. Gov. Print. Office.

MLA

Collins John H, Bisson Edmond E and Schmiedlin Ralph F. Nitrided steel piston rings for engines of high specific power. Washington, DC: U.S. Gov. Print. Office. 1945.