J. Pennington

Analysis and distribution of vitamin E in vegetable oils and foods

J. Weihrauch, A. J. Sheppard, J. Pennington, 1993 .

Copper content of foods. Factors affecting reported values.

D. Calloway, J. Pennington, 1973, Journal of the American Dietetic Association.

Factors affecting reported values: Copper content of foods

D. Calloway, J. Pennington, 1973, Journal of the American Dietetic Association.