APA-viite (7. p.)

Singapore. Housing and Development Board. Annual report - Housing and Development Board, Republic of Singapore. Printed by the Govt. Print. Off.

Chicago-viite (17. p.)

Singapore. Housing and Development Board. Annual Report - Housing and Development Board, Republic of Singapore. Singapore: Printed by the Govt. Print. Off.

MLA-viite (8. p.)

Singapore. Housing and Development Board. Annual Report - Housing and Development Board, Republic of Singapore. Printed by the Govt. Print. Off.

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