Dyfyniad APA

Phillips, R. E. P. a. S. H. (1984). NO-TILLAGE AGRICULTURE: PRINCIPLES AND PRACTICES. Van Nostrand Reinhold.

Dyfyniad Arddull Chicago

Phillips, Ronald E. Phillips and Shirley H. NO-TILLAGE AGRICULTURE: PRINCIPLES AND PRACTICES. Van Nostrand Reinhold, 1984.

Dyfyniad MLA

Phillips, Ronald E. Phillips and Shirley H. NO-TILLAGE AGRICULTURE: PRINCIPLES AND PRACTICES. Van Nostrand Reinhold, 1984.

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