APA

Jung H., Hagge H. P. & Jung U. O. (1991). The dictionary of acronyms and abbreviations in applied linguistics and language learning. Frankfurt am Main [etc.]: [s.n.].

Chicago

Jung Heidrun, Hagge Helmut P and Jung Udo O.H. 1991. The dictionary of acronyms and abbreviations in applied linguistics and language learning. Frankfurt am Main [etc.]: [s.n.].

Harvard

Jung H., Hagge H. P. and Jung U. O. (1991). The dictionary of acronyms and abbreviations in applied linguistics and language learning. Frankfurt am Main [etc.]: [s.n.].

MLA

Jung Heidrun, Hagge Helmut P and Jung Udo O.H. The dictionary of acronyms and abbreviations in applied linguistics and language learning. Frankfurt am Main [etc.]: [s.n.]. 1991.