APA
Single O.P, . (1990). Engg Thermodynimics. : Delhi Macmillan India ltd.
Chicago
Single O.P, . 1990. Engg Thermodynimics. : Delhi Macmillan India ltd.
Harvard
Single O.P, . (1990). Engg Thermodynimics. : Delhi Macmillan India ltd.
MLA
Single O.P, . Engg Thermodynimics. : Delhi Macmillan India ltd. 1990.