APA

Singh Yogesh Kumar, Nath Ruchika, . (2005). Research methodology. New Delhi: APH Publishing Corporation.

Chicago

Singh Yogesh Kumar, Nath Ruchika, . 2005. Research methodology. New Delhi: APH Publishing Corporation.

Harvard

Singh Yogesh Kumar, Nath Ruchika, . (2005). Research methodology. New Delhi: APH Publishing Corporation.

MLA

Singh Yogesh Kumar, Nath Ruchika, . Research methodology. New Delhi: APH Publishing Corporation. 2005.