@book{bhlitem78765, title = {Instruction manual for obtaining oceanographic data }, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/78765}, note = {https://www.biodiversitylibrary.org/bibliography/33986}, publisher = {Washington, For sale by the Supt. of Docs., U.S. Govt. Print. Off, 1968-}, author = {United States. Naval Oceanographic Office.}, year = {1968}, pages = {526}, keywords = {Observers' manuals|Oceanography|}, }