Cita APA

Tsekouras, D., Ball, W., & Zacharopoulou, D. (1990). The english phrasal verbs worbook key. NelSon, U.K: [s.n].

Citación estilo Chicago

Tsekouras, Dimitri, Wendy Ball, and Dimitra Zacharopoulou. The English Phrasal Verbs Worbook Key. NelSon, U.K: [s.n], 1990.

Cita MLA

Tsekouras, Dimitri, Wendy Ball, and Dimitra Zacharopoulou. The English Phrasal Verbs Worbook Key. NelSon, U.K: [s.n], 1990.