APA (7e ed.) Bronvermelding

Percy, C. H. 1. (1974). Growing old in the country of the young. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Percy, Charles H. 1919. Growing Old in the Country of the Young. New York: McGraw-Hill, 1974.

MLA (9e ed.) Bronvermelding

Percy, Charles H. 1919. Growing Old in the Country of the Young. McGraw-Hill, 1974.