APA
Jerzy A Wonciechowski, Conference on the conceptual basis of the classification of knowledge (Ottawa) & Conference on the conceptual basis of the classification of knowledge (Ottawa). (1974). Proceedings. Munchen: Verlag Documentation.
Chicago
Jerzy A Wonciechowski, Conference on the conceptual basis of the classification of knowledge (Ottawa) and Conference on the conceptual basis of the classification of knowledge (Ottawa). 1974. Proceedings. Munchen: Verlag Documentation.
Harvard
Jerzy A Wonciechowski, Conference on the conceptual basis of the classification of knowledge (Ottawa) and Conference on the conceptual basis of the classification of knowledge (Ottawa). (1974). Proceedings. Munchen: Verlag Documentation.
MLA
Jerzy A Wonciechowski, Conference on the conceptual basis of the classification of knowledge (Ottawa) and Conference on the conceptual basis of the classification of knowledge (Ottawa). Proceedings. Munchen: Verlag Documentation. 1974.
