APA
Bedi D.S, . (1991). Strength of Material. : N. Delhi s Chand Com ltd.
Chicago
Bedi D.S, . 1991. Strength of Material. : N. Delhi s Chand Com ltd.
Harvard
Bedi D.S, . (1991). Strength of Material. : N. Delhi s Chand Com ltd.
MLA
Bedi D.S, . Strength of Material. : N. Delhi s Chand Com ltd. 1991.