Dyfyniad APA

American Society of civil Engineers. (1975). Committe on Pipe Line Planning Pipe Line Divition. American society of Civil Engineers.

Dyfyniad Arddull Chicago

American Society of civil Engineers. Committe on Pipe Line Planning Pipe Line Divition. New York: American society of Civil Engineers, 1975.

Dyfyniad MLA

American Society of civil Engineers. Committe on Pipe Line Planning Pipe Line Divition. American society of Civil Engineers, 1975.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.