APA

Gottfries C. G., Karlsson I., . (1998). Depression in later life. Oxford: Sterling.

Chicago

Gottfries Carl Gerhard, Karlsson Ingvar, . 1998. Depression in later life. Oxford: Sterling.

Harvard

Gottfries C. G., Karlsson I., . (1998). Depression in later life. Oxford: Sterling.

MLA

Gottfries Carl Gerhard, Karlsson Ingvar, . Depression in later life. Oxford: Sterling. 1998.