Cite

Eldridge's Chart No. 11 : Delaware Bay and river / from the U.S. Coast and George Elridge's surveys.

MLA

Eldridge's Chart No. 11 : Delaware Bay and River / from the U.S. Coast and George Elridge's Surveys. S. Thaxter and Son , 1893. https://collections.library.yale.edu/catalog/15811171.

APA, 6th edition

Eldridge's Chart No. 11 : Delaware Bay and river / from the U.S. Coast and George Elridge's surveys. (1893). [Maps]. S. Thaxter and Son , https://collections.library.yale.edu/catalog/15811171.