APA (7th ed.) Citation

Tiger, L. (1979). Optimism : the biology of hope / (by) Lionel Tiger: The biology of hope. Secker and Warburg.

Chicago Style (17th ed.) Citation

Tiger, Lionel. Optimism : The Biology of Hope / (by) Lionel Tiger: The Biology of Hope. London: Secker and Warburg, 1979.

MLA (9th ed.) Citation

Tiger, Lionel. Optimism : The Biology of Hope / (by) Lionel Tiger: The Biology of Hope. Secker and Warburg, 1979.

Warning: These citations may not always be 100% accurate.