Statement of Capt. John J. Knapp, U.S. Navy, HydrographerUnited States. Congress. House. Committee on Naval Affairs · First published 1973Open the Tome
Nominations of Philip D. Winn, John J. Knapp, Emanuel S. Savas, and Arthur E. Teele, JrUnited States. Congress. Senate. Committee on Banking, Housing, and Urban Affairs. · First published 1981Open the Tome