Dyfyniad APA

ALBRECHT, K. (1980). BRAINPOWER: LEARN TO IMPROVE YOUR THINKING SKILLS. PRENTICE-HALL.

Dyfyniad Arddull Chicago

ALBRECHT, KARL. BRAINPOWER: LEARN TO IMPROVE YOUR THINKING SKILLS. PRENTICE-HALL, 1980.

Dyfyniad MLA

ALBRECHT, KARL. BRAINPOWER: LEARN TO IMPROVE YOUR THINKING SKILLS. PRENTICE-HALL, 1980.

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