APA

Halpin S., Corrigan D. W., Schleter J. C. & Estados Unidos. Departament of Commerce. Office of the Assistant Secretary for Science and Technology. (1972). Technology enhancement programs in five foreign countries. Springfield: NTIS.

Chicago

Halpin Suellen, Corrigan Donald W, Schleter John C and Estados Unidos. Departament of Commerce. Office of the Assistant Secretary for Science and Technology. 1972. Technology enhancement programs in five foreign countries. Springfield: NTIS.

Harvard

Halpin S., Corrigan D. W., Schleter J. C. and Estados Unidos. Departament of Commerce. Office of the Assistant Secretary for Science and Technology. (1972). Technology enhancement programs in five foreign countries. Springfield: NTIS.

MLA

Halpin Suellen, Corrigan Donald W, Schleter John C and Estados Unidos. Departament of Commerce. Office of the Assistant Secretary for Science and Technology. Technology enhancement programs in five foreign countries. Springfield: NTIS. 1972.