Gaya APA

Alexandra, O., LONG, F, A. (1980). APPROPRIATE TECHNOLOGY AND SOCIAL VALUES : A CRITICAL APPRAISAL . Cambridge,Massachusetts: Ballinger Publishing.

Gaya MLA

Alexandra, Oleson., LONG, Franklin, A.. "APPROPRIATE TECHNOLOGY AND SOCIAL VALUES : A CRITICAL APPRAISAL". Cambridge,Massachusetts: Ballinger Publishing, 1980. Textbook.