APA

Cook J. c., . (1999). The book of positive quotations. Estados Unidos de América: Gramercy Books.

Chicago

Cook John compilador, . 1999. The book of positive quotations. Estados Unidos de América: Gramercy Books.

Harvard

Cook J. c., . (1999). The book of positive quotations. Estados Unidos de América: Gramercy Books.

MLA

Cook John compilador, . The book of positive quotations. Estados Unidos de América: Gramercy Books. 1999.