Cita APA (7a ed.)
Diettrich, S. d. R. Around the World Program: The Philippine Islands. Doubleday.
Cita estilo Chicago (17a ed.)
Diettrich, Sigismond de R. Around the World Program: The Philippine Islands. Nueva York, EUA: Doubleday.
Cita MLA (9a ed.)
Diettrich, Sigismond de R. Around the World Program: The Philippine Islands. Doubleday.
警告：這些引文格式不一定是100％准確.