Comprehensive catalogue 1979-1980 : Serials in Microform.

MLA

Comprehensive Catalogue 1979-1980 : Serials In Microform. Londen: University Microfilms International, 1979.

APA

(1979). Comprehensive catalogue 1979-1980 : Serials in Microform. Londen: University Microfilms International.

Chicago

Comprehensive Catalogue 1979-1980 : Serials In Microform. Londen: University Microfilms International, 1979.