Gaya APA

Severns, W, H., Degler, H, E. (1964). Steam, air, and gas power. (1964). : New York : John Wiley & Sons, Inc.,.

Gaya MLA

Severns, William, H.., Degler, Howard, E.. "Steam, air, and gas power.". 1964 : New York : John Wiley & Sons, Inc.,, 1964. Text.