Singh, Darshan. Soviet sangh : aaj aur kal / Darshan Singh. - दिल्ली : शब्दकार प्रकाशन, 1976. - 149 p. : ill., photos ; 21 cm. Subjects--Topical Terms: Social evolution. Social change. Social systems.--Growth. Dewey Class. No.: 306.0947 Si644 So