APA
Clarkson G. E., . (1987). Grounds for belief in life after death. Lewiston, New York: E. Mellen Press.
Chicago
Clarkson George E, . 1987. Grounds for belief in life after death. Lewiston, New York: E. Mellen Press.
Harvard
Clarkson G. E., . (1987). Grounds for belief in life after death. Lewiston, New York: E. Mellen Press.
MLA
Clarkson George E, . Grounds for belief in life after death. Lewiston, New York: E. Mellen Press. 1987.