APA

Nicholson R. A., .The mystics of Islam. New York: Schocken Books,1975: .

Chicago

Nicholson Reynold A, .The mystics of Islam. New York: Schocken Books,1975: .

Harvard

Nicholson R. A., .The mystics of Islam. New York: Schocken Books,1975: .

MLA

Nicholson Reynold A, .New York: Schocken Books,1975: . .