WikiSource Link: s:First International Maritime Conference Held for Devising an Uniform System of Meteorological Observations at Sea First International Maritime Conference Held for Devising an Uniform System of Meteorological Observations at Sea.
اطلع عليه بتاريخ 01 يونيو 2011.  الوسيط |تاريخ الوصول= تم تجاهله (مساعدة); الوسيط |المسار= تم تجاهله (مساعدة); الوسيط |العنوان= تم تجاهله (مساعدة); الوسيط |المؤلف= تم تجاهله (مساعدة) WikiSource Link: s:First International Maritime Conference Held for Devising an Uniform System of Meteorological Observations at Sea First International Maritime Conference Held for Devising an Uniform System of Meteorological Observations at Sea.