Catalogue of scientific and technical research journals in all languages. 1968/69 Volume 1 (A to K).

MLA

Catalogue of Scientific and Technical Research Journals In All Languages. 1968/69 Volume 1 (a to K). New York: Maxwell, 1967.

APA

(1967). Catalogue of scientific and technical research journals in all languages. 1968/69 Volume 1 (A to K). New York: Maxwell.

Chicago

Catalogue of Scientific and Technical Research Journals In All Languages. 1968/69 Volume 1 (A to K). New York: Maxwell, 1967.