Dyfyniad APA

(1947). Approach to physical science: Supplementary chapters (by A A Strassenburg). John Wiley & Sons.

Dyfyniad Arddull Chicago

Approach to Physical Science: Supplementary Chapters (by A A Strassenburg). John Wiley & Sons, 1947.

Dyfyniad MLA

Approach to Physical Science: Supplementary Chapters (by A A Strassenburg). John Wiley & Sons, 1947.

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