APA (7th ed.) Citation

Wesche, B. (1987). At ease with "at": Prototype semantics applied to prepositions. IBM Deutschland, WT LILOG.

Chicago Style (17th ed.) Citation

Wesche, Birgit. At Ease with "at": Prototype Semantics Applied to Prepositions. Stuttgart: IBM Deutschland, WT LILOG, 1987.

MLA (9th ed.) Citation

Wesche, Birgit. At Ease with "at": Prototype Semantics Applied to Prepositions. IBM Deutschland, WT LILOG, 1987.

Warning: These citations may not always be 100% accurate.