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.
استشهاد بنمط شيكاغوInternational summer school (June 1-12:1967:Italy) و Kuhn,H W. Proceeding of an International Summer School Held in Varenna,Italy,June 1-12,1967. Berlin: Springer - Verlag, 1969.
MLA استشهادInternational summer school (June 1-12:1967:Italy) و Kuhn,H W. Proceeding of an International Summer School Held in Varenna,Italy,June 1-12,1967. Springer - Verlag, 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.