Cita APA

Macdonald, L. (2004). Learn to be an optimist. Duncan Baird.

Citación estilo Chicago

Macdonald, Lucy. Learn to Be an Optimist. London: Duncan Baird, 2004.

Cita MLA

Macdonald, Lucy. Learn to Be an Optimist. Duncan Baird, 2004.

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