Gettens, Rutherford J., Elisabeth West Fitzhugh, and Robert L. Feller. "Calcium Carbonate Whites." Studies in Conservation 19/3 (1974): 157-184.

Gettens, Rutherford J., Elisabeth West Fitzhugh, and Robert L. Feller. "Calcium Carbonate Whites." Studies in Conservation 19/3 (1974): 157-184.