Singapore. (1970). Government directory. Printed by the Govt. Print. Off..
Chicagoスタイル(17版)引用形式Singapore. Government Directory. [Singapore: Printed by the Govt. Print. Off., 1970.
MLA(8版)引用形式Singapore. Government Directory. Printed by the Govt. Print. Off., 1970.
警告: この引用は必ずしも正確ではありません.