APA

National Microfilm Association, . (1973). Introduction to micrographics. [Silver Spring, Md: .

Chicago

National Microfilm Association, . 1973. Introduction to micrographics. [Silver Spring, Md: .

Harvard

National Microfilm Association, . (1973). Introduction to micrographics. [Silver Spring, Md: .

MLA

National Microfilm Association, . Introduction to micrographics. [Silver Spring, Md: . 1973.