Witherby & Co Ltd · Witherby Seamanship International Ltd
| title | ISBN-13 (ISBN-10)  | year of publication | 
|---|---|---|
| LNG Shipping Suggested Competency Standards: Guidance and Suggested Best Practice for the LNG Industry in the 21st Century | 978-1-905331-36-9 (1-905331-36-3)  | 2008 | 
| Recommendations and Guidelines for Linked Ship/Shore Emergency Shut-down of Liquefied Gas Cargo Transfer | 978-0-948691-39-3 (0-948691-39-5)  | 1987 |