> Verlagsreihe
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21:
Southern Atlantic, Eastern Gulf, Eastern Mississippi River and Great Lakes drainage by F. H. Newell
Washington, DC: Gov. Print. Off., 1903
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22:
Western Mississippi River and Western Gulf drainage by F. H. Newell
Washington, DC: Gov. Print. Off., 1903
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23:
Interior Basin, Pacific Coast and Hudson Bay drainage by F. H. Newell
Washington, DC: Gov. Print. Off., 1903