APA (7. basım) Alıntı

Philippines (Republic) Dept. of Tourism & Philippines (Republic). Department of Tourism. Tourism: Four-year development plan, 1974 to 1977. [s.n.

Chicago Style (17. basım) Atıf

Philippines (Republic) Dept. of Tourism ve Philippines (Republic). Department of Tourism. Tourism: Four-year Development Plan, 1974 to 1977. Manila: [s.n.

MLA (9th ed.) Atıf

Philippines (Republic) Dept. of Tourism ve Philippines (Republic). Department of Tourism. Tourism: Four-year Development Plan, 1974 to 1977. [s.n.