Souder, Wilmer Circular of the Bureau of Standards No. 497: Research on Dental Materials at the National Bureau of Standards: a Review and Bibliography; NBS Circular 497
![Souder, Wilmer Circular of the Bureau of Standards No. 497: Research on Dental Materials at the National Bureau of Standards: a Review and Bibliography; NBS Circular 497](https://r.kelkoo.com/resize.php?country=se&merchantId=100565793&categoryId=5101&trackingId=96964074&width=300&height=300&image=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F41qZrF5LFEL._SL500_.jpg&sign=8Kqg4vTi4X5ztyA8ECHDMKsQR_dkoh9Q8otEaumbC5w-)
Circular of the Bureau of Standards No. 497: Research on Dental Materials at the National Bureau of Standards: a Review and Bibliography; NBS Circular 497