https://openlibrary.org/books/OL11318948M.opds Directories in Print 2017-06-24T16:25:38Z Charles B. Montney https://openlibrary.org/authors/OL2876627A/Charles_B._Montney Gale Group September 1992 10th edition eng https://openlibrary.org/books/OL11318948M https://archive.org/details/isbn_9780810379381 urn:ISBN:081037627X urn:ISBN:9780810376274