APA
Pitfield R. R. &. H. P. F., . (1976). Duties of a company secretary. Secretaries Journal, London: .
Chicago
Pitfield Ronald R & Hughes Percy F, . 1976. Duties of a company secretary. Secretaries Journal, London: .
Harvard
Pitfield R. R. &. H. P. F., . (1976). Duties of a company secretary. Secretaries Journal, London: .
MLA
Pitfield Ronald R & Hughes Percy F, . Duties of a company secretary. Secretaries Journal, London: . 1976.