APA

Mackay K., I, British Petroleum, World Petroleum Congress (11th. : 1983 : London), I & British Petroleum.Estimates of manpower requirements and manpower availability in the world petroleum industry 1980-2000 and their implications. : .

Chicago

Mackay K.H, I, British Petroleum, World Petroleum Congress (11th. : 1983 : London), I and British Petroleum.Estimates of manpower requirements and manpower availability in the world petroleum industry 1980-2000 and their implications. : .

Harvard

Mackay K., I, British Petroleum, World Petroleum Congress (11th. : 1983 : London), I and British Petroleum.Estimates of manpower requirements and manpower availability in the world petroleum industry 1980-2000 and their implications. : .

MLA

Mackay K.H, I, British Petroleum, World Petroleum Congress (11th. : 1983 : London), I and British Petroleum.: . .