Singapore. (1970). Government directory. Printed by the Govt. Print. Off..
Chicago Style (17th ed.) CitationSingapore. Government Directory. [Singapore: Printed by the Govt. Print. Off., 1970.
Cita MLASingapore. Government Directory. Printed by the Govt. Print. Off., 1970.
Atenció: Aquestes cites poden no estar 100% correctes.