Powers, Rasmussen and Clark (1951)
For bones and teeth.
References:
Powers, M.M., Rasmusen, G.L., and Clark, G.,Anat. Rec., 111:117- 6, (1951)
Clark, G. (ed), Staining Procedures, 3rd edition, William & Wilkins, Baltimore, c 1973, p. 136
Bodian, D., Anat. Rec., 65:89 – 97, 1936
Bodian, D., Anat. Rec., 69:153 – 62, 1937