Cita APA

Fowler, W., & Coe, N. (1987). Quickcheck placement tests (New ed.). NelSon, U.K: [s.n].

Citación estilo Chicago

Fowler, W.S, and Norman Coe. Quickcheck Placement Tests. New ed. NelSon, U.K: [s.n], 1987.

Cita MLA

Fowler, W.S, and Norman Coe. Quickcheck Placement Tests. New ed. NelSon, U.K: [s.n], 1987.