APA (7th ed.) Citation

Batten, W. E., & Ashworth, W. (1975). Handbook of special librarianship and information work (4th ed.). Aslib.

Chicago Style (17th ed.) Citation

Batten, William Edward, and Wilfred Ashworth. Handbook of Special Librarianship and Information Work. 4th ed. London: Aslib, 1975.

MLA (8th ed.) Citation

Batten, William Edward, and Wilfred Ashworth. Handbook of Special Librarianship and Information Work. 4th ed. Aslib, 1975.