Sichrovsksy, H. (1987). Ferdinand Blumentritt: An Austrian life for the Philippines. [s.n.].
Chicagoスタイル(17版)引用形式Sichrovsksy, Harry. Ferdinand Blumentritt: An Austrian Life for the Philippines. Manila: [s.n.], 1987.
MLA(9版)引用形式Sichrovsksy, Harry. Ferdinand Blumentritt: An Austrian Life for the Philippines. [s.n.], 1987.
警告: この引用は必ずしも正確ではありません.