20:45 duration 20 minutes 45 seconds
Vertical Measurements, Part I
Vertical Measurements, Part I, 759.14 DVD.
18:06 duration 18 minutes 6 seconds
Scale of a Vertical Aerial Photo, Part I
Scale of a Vertical Aerial Photo, Part I, 759.7 DVD.
17:32 duration 17 minutes 32 seconds
Geometry of a Vertical Aerial Photo, Part I
Geometry of a Vertical Aerial Photo, Part I, 759.1 DVD.
38:05 duration 38 minutes 5 seconds
Trees of North America: The Gymnosperms - Part I
Trees of North America: The Gymnosperms - Part I 471.40 DVD.
31:19 duration 31 minutes 19 seconds
Trees of North America: The Angiosperms Part I
Trees of North America: The Angiosperms Part I, 471.43 DVD.
