APA
Piper D. R., . (1969). 52. Short illustrative talks. Grand Rapids: Baker Book House.
Chicago
Piper David R, . 1969. 52. Short illustrative talks. Grand Rapids: Baker Book House.
Harvard
Piper D. R., . (1969). 52. Short illustrative talks. Grand Rapids: Baker Book House.
MLA
Piper David R, . 52. Short illustrative talks. Grand Rapids: Baker Book House. 1969.
