Geologic reconnaissance map of Mindanoa / Bureau of Science, Division of Mines ; P. Moskaira, engraved ; geology by Warren D. Smith

1915

Bureau of Science . Division of Mines

No. 27. Mindanao Oriental.

1899

U.S. Coast and Geodetic Survey

1:2m

Western Mindanao

1912

1:411k

Carta General Del Archipielago Filipino

1897

1:759k

[Islas filipinas - Mindanao oriental]

1900

Algué, P. José

Carta General Del Archipielago Filipino

1897

1:734k

Southeastern Mindanao

1912

1:399k

No. 26. Mindanao Jolo.

1899

U.S. Coast and Geodetic Survey

1:3m

[Islas filipinas - Mindanao Joló]

1900

Algué, P. José

South Mindanao / Topografische Dienst

1941

Topografische Dienst Batavia