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| Preview | Issue Date | Title | Author(s) |
|---|---|---|---|
 | Feb-1931 | The National Geographic Magazine : Volume 59 : N2 | Grosvenor, Gilbert H. |
 | Jan-1931 | The National Geographic Magazine : Volume 59 : N1 | Grosvenor, Gilbert H. |
 | Apr-1931 | The National Geographic Magazine : Volume 59 : N4 | Grosvenor, Gilbert H. |
 | Jun-1931 | The National Geographic Magazine : Volume 59 : N6 | Grosvenor, Gilbert H. |
 | Aug-1931 | The National Geographic Magazine : Volume 60 : N2 | Grosvenor, Gilbert H. |
 | Jul-1931 | The National Geographic Magazine : Volume 60 : N1 | Grosvenor, Gilbert H. |
 | Nov-1931 | The National Geographic Magazine : Volume 60 : N5 | Grosvenor, Gilbert H. |
 | May-1939 | The National Geographic Magazine : Volume 75 : N5 | Grosvenor, Gilbert H. |
 | Oct-1939 | The National Geographic Magazine : Volume 76 : N4 | Grosvenor, Gilbert H. |
 | Dec-1939 | The National Geographic Magazine : Volume 76 : N6 | Grosvenor, Gilbert H. |