APA (7th ed.) Citation

(1911). Agusan Rivel entrance. Coast and Geodetic Survey.

Chicago Style (17th ed.) Citation

Agusan Rivel Entrance. Washington, D.C: Coast and Geodetic Survey, 1911.

MLA (9th ed.) Citation

Agusan Rivel Entrance. Coast and Geodetic Survey, 1911.

Warning: These citations may not always be 100% accurate.