Columbia subject headings:
Hydrographic surveying--Turkey--Marmara, Sea of.
Hydrography--Turkey--Marmara, Sea of.
Oceanography--Turkey--Marmara, Sea of.
Harvard subject headings:
Princeton subject headings:
Hydrographic surveying--Turkey--Marmara, Sea of.
Hydrography--Turkey--Marmara, Sea of.
Oceanography--Turkey--Marmara, Sea of.