APA-referens

Singal, M., & Singal, A. R. (1976). Objective test in Undergraduate mathematics: Trignometry. University leadership project in Mathematics.

Chicago-stil citat

Singal, M.K, och Asha Rani Singal. Objective Test in Undergraduate Mathematics: Trignometry. Meerut: University leadership project in Mathematics, 1976.

MLA-referens

Singal, M.K, och Asha Rani Singal. Objective Test in Undergraduate Mathematics: Trignometry. University leadership project in Mathematics, 1976.