Dyfyniad APA

(1990). Easy autocad: A tutorial approach (2nd.). McGraw-Hill publishing company.

Dyfyniad Arddull Chicago

Easy Autocad: A Tutorial Approach. 2nd. new york: McGraw-Hill publishing company, 1990.

Dyfyniad MLA

Easy Autocad: A Tutorial Approach. 2nd. McGraw-Hill publishing company, 1990.

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