Cita APA (7th ed.)

Gannon, M. G. (1990). Tourism manpower survey report 1990. s.n].

Cita Chicago (17th ed.)

Gannon, Mary G. Tourism Manpower Survey Report 1990. [S.l: s.n], 1990.

Cita MLA (9th ed.)

Gannon, Mary G. Tourism Manpower Survey Report 1990. s.n], 1990.