APA
Sutherland V. J., Sutherland V. J., . (1990). Understanding stress. London: Chapman & Hall.
Chicago
Sutherland Valerie J, Sutherland Valerie J, . 1990. Understanding stress. London: Chapman & Hall.
Harvard
Sutherland V. J., Sutherland V. J., . (1990). Understanding stress. London: Chapman & Hall.
MLA
Sutherland Valerie J, Sutherland Valerie J, . Understanding stress. London: Chapman & Hall. 1990.