Dyfyniad APA

International summer school (June 1-12:1967:Italy) & Kuhn,H W. (1969). Proceeding of an international summer school held in Varenna,Italy,June 1-12,1967. Springer - Verlag.

Dyfyniad Arddull Chicago

International summer school (June 1-12:1967:Italy) and Kuhn,H W. Proceeding of an International Summer School Held in Varenna,Italy,June 1-12,1967. Berlin: Springer - Verlag, 1969.

Dyfyniad MLA

International summer school (June 1-12:1967:Italy) and Kuhn,H W. Proceeding of an International Summer School Held in Varenna,Italy,June 1-12,1967. Springer - Verlag, 1969.

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