William and Henry Walters, the Reticent Collectors.

MLA

Johnston, William R. William and Henry Walters, the Reticent Collectors. Baltimore: The John Hopkins University Press, 1999.

APA

Johnston, W. R. (1999). William and Henry Walters, the Reticent Collectors. Baltimore: The John Hopkins University Press.

Chicago

Johnston, William R. William and Henry Walters, the Reticent Collectors. Baltimore: The John Hopkins University Press, 1999.