Singh, L. A. (1970). Yoga psychology: Methods & approaches ([1st ed.). Devendra Singh]; sole distributors: Bharatiya Vidya Prakashan, Varanasi.
Chicago-viite (17. p.)Singh, Lal Amarendra. Yoga Psychology: Methods & Approaches. [1st ed. Unnao, U.P.: Devendra Singh]; sole distributors: Bharatiya Vidya Prakashan, Varanasi, 1970.
MLA-viite (8. p.)Singh, Lal Amarendra. Yoga Psychology: Methods & Approaches. [1st ed. Devendra Singh]; sole distributors: Bharatiya Vidya Prakashan, Varanasi, 1970.
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