Dyfyniad APA

Nowell, D., & Hills, D. (1988). TRACTIVE ROLLING OF TIRED CYLINDERS.

Dyfyniad Arddull Chicago

Nowell, D., and D. Hills. TRACTIVE ROLLING OF TIRED CYLINDERS. 1988.

Dyfyniad MLA

Nowell, D., and D. Hills. TRACTIVE ROLLING OF TIRED CYLINDERS. 1988.

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