APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

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