OTION PICTURES 159

41 Effective methods of combating costly white pine blister rust disease to conserve soil tion and watersheds as well as the white pines of the Southern Appalachians. of 1,32,41 bon
Complete catalog record
Series: White Pine Blister Rust Series
Type: Motion Picture

Sources

  1. 3434 U.S. Government Films — title, year, creator, length, format, color, description, catalog record