APA (7th ed.) Citation
Diettrich, S. d. R. Around the World Program: The Philippine Islands. Doubleday.
Chicago Style (17th ed.) Citation
Diettrich, Sigismond de R. Around the World Program: The Philippine Islands. Nueva York, EUA: Doubleday.
MLA (9th ed.) Citation
Diettrich, Sigismond de R. Around the World Program: The Philippine Islands. Doubleday.
Warning: These citations may not always be 100% accurate.