| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Babylonian Menologies and the Semitic Calendars | 978-O-317-15851-9 (O-317-15851-1) | 1980 |
Christoph Schlüter Langdon · John S. Langdon · S. L. · Samuel Langdon · Sandra Langdon · Simon P. Langdon · Singapore) Davis Langdon & Seeah (Chartered Quantity Surveyors · Stephen Langdon · Steve J. Langdon · Susan Langdon