APA (7th ed.) Citation

Schreurs, P. Four Flags Over Butuan. [editor no identificat].

Chicago Style (17th ed.) Citation

Schreurs, Peter. Four Flags Over Butuan. [Lloc de publicació no identificat]: [editor no identificat].

MLA (9th ed.) Citation

Schreurs, Peter. Four Flags Over Butuan. [editor no identificat].

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