Dyfyniad APA

Fritz Machlup & Kenneth Lesson. (1978). Information Through the Printed Word.

Dyfyniad Arddull Chicago

Fritz Machlup & Kenneth Lesson. Information Through the Printed Word. Praeger Publications, New Delhi, 1978.

Dyfyniad MLA

Fritz Machlup & Kenneth Lesson. Information Through the Printed Word. 1978.

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