APA

Sharp J. R., . (1970). Information retrieval : notes for students. New York: Seminar Press.

Chicago

Sharp John R, . 1970. Information retrieval : notes for students. New York: Seminar Press.

Harvard

Sharp J. R., . (1970). Information retrieval : notes for students. New York: Seminar Press.

MLA

Sharp John R, . Information retrieval : notes for students. New York: Seminar Press. 1970.