Cita APA

Waddington, C. H. (1977). Tools for thought. United Kingdom: Paladin.

Chicago Style Citation

Waddington, C. H. Tools for Thought. United Kingdom: Paladin, 1977.

Cita MLA

Waddington, C. H. Tools for Thought. United Kingdom: Paladin, 1977.

Atenció: Aquestes cites poden no estar 100% correctes.