Gaya APA

Office, U, K, H. (2021). Admiralty Sailing Directions : Philippine Islands Pilot (Ed. 7). United Kingdom: Penerbit The United Kingdom Hydrographic Office.

Gaya MLA

Office, United, Kingdom, Hydrographic. "Admiralty Sailing Directions : Philippine Islands Pilot". Ed. 7 United Kingdom: Penerbit The United Kingdom Hydrographic Office, 2021. Text.