The creeds of Christendom :
with a history and critical notes /
edited by Philip Schaff ; revised by David S. Schaff.

APA Citation

Schaff, P. (1993). The creeds of Christendom: with a history and critical notes. 6th ed. Grand Rapids: Baker Books.

MLA Citation

Schaff, Philip, 1819-1893. The Creeds of Christendom: With a History And Critical Notes. 6th ed. Grand Rapids: Baker Books, 1993.

Warning: These citations may not always be complete (especially for serials).