APA

Tickoo Girja, University of Delhi. Faculty of Arts. Department of Library and Information Science & University of Delhi. Faculty of Arts. Department of Library and Information Science. (1980). Growth and development of selected reference tools in natural sciences published in India. Delhi: University of Delhi India.

Chicago

Tickoo Girja, University of Delhi. Faculty of Arts. Department of Library and Information Science and University of Delhi. Faculty of Arts. Department of Library and Information Science. 1980. Growth and development of selected reference tools in natural sciences published in India. Delhi: University of Delhi India.

Harvard

Tickoo Girja, University of Delhi. Faculty of Arts. Department of Library and Information Science and University of Delhi. Faculty of Arts. Department of Library and Information Science. (1980). Growth and development of selected reference tools in natural sciences published in India. Delhi: University of Delhi India.

MLA

Tickoo Girja, University of Delhi. Faculty of Arts. Department of Library and Information Science and University of Delhi. Faculty of Arts. Department of Library and Information Science. Growth and development of selected reference tools in natural sciences published in India. Delhi: University of Delhi India. 1980.