APA

First World Conference on Continuing Engineering Education, Grayson L. P. & Biedenbach J. M. (1979). Proceedings. México: .

Chicago

First World Conference on Continuing Engineering Education, Grayson Lawrence P and Biedenbach Joseph M. 1979. Proceedings. México: .

Harvard

First World Conference on Continuing Engineering Education, Grayson L. P. and Biedenbach J. M. (1979). Proceedings. México: .

MLA

First World Conference on Continuing Engineering Education, Grayson Lawrence P and Biedenbach Joseph M. Proceedings. México: . 1979.