International Seminar on Tourist Vocational Training in Africa, Nairobi (Kenya), 1972, & International Labour Office. (1972). Tourism vocational training in Africa, Nairobi (Kenya) held Sept., 1972. IUOTO.
Chicago-viite (17. p.)International Seminar on Tourist Vocational Training in Africa, Nairobi (Kenya), 1972, ja International Labour Office. Tourism Vocational Training in Africa, Nairobi (Kenya) Held Sept., 1972. Geneva: IUOTO, 1972.
MLA-viite (9. p.)International Seminar on Tourist Vocational Training in Africa, Nairobi (Kenya), 1972, ja International Labour Office. Tourism Vocational Training in Africa, Nairobi (Kenya) Held Sept., 1972. IUOTO, 1972.
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