Dyfyniad APA

NELSON, E. B. Well cementing#Editor Erik B. Nelson. Schlumberger Educational Services.

Dyfyniad Arddull Chicago

NELSON, Erik B. Well Cementing#Editor Erik B. Nelson. Schlumberger Educational Services.

Dyfyniad MLA

NELSON, Erik B. Well Cementing#Editor Erik B. Nelson. Schlumberger Educational Services.

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