Frey, C. (1969). Thesaurus of engineering and scientific terms: A list of engineering and related scientific terms and their relationshipps for use as a vocabolary reference in indexing and retrieving technical information (1. ed., 2. print.).
Chicago-Zitierstil (17. Ausg.)Frey, Carl. Thesaurus of Engineering and Scientific Terms: A List of Engineering and Related Scientific Terms and Their Relationshipps for Use as a Vocabolary Reference in Indexing and Retrieving Technical Information. 1. ed., 2. print. New York, NY, 1969.
MLA-Zitierstil (9. Ausg.)Frey, Carl. Thesaurus of Engineering and Scientific Terms: A List of Engineering and Related Scientific Terms and Their Relationshipps for Use as a Vocabolary Reference in Indexing and Retrieving Technical Information. 1. ed., 2. print. 1969.