Παραπομπή APA

Litvin, F. L. (1989). Theory of gearing. Washington, DC.: National Aeronautics and Space Administration, Scientific and Technical Information Facility.

Παραπομπή Chicago Style

Litvin, F. L. Theory of Gearing. Washington, DC.: National Aeronautics and Space Administration, Scientific and Technical Information Facility, 1989.

Παραπομπή MLA

Litvin, F. L. Theory of Gearing. Washington, DC.: National Aeronautics and Space Administration, Scientific and Technical Information Facility, 1989.

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