Stefan Hesse. (1995). Air preparation. Esslingen: Festo Didactic.
Trích dẫn kiểu ChicagoStefan Hesse. Air Preparation. Esslingen: Festo Didactic, 1995.
MLA引文Stefan Hesse. Air Preparation. Esslingen: Festo Didactic, 1995.
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APA引文