Serpentine end matching
Subtitle: a test of visual perception
By: by Bruce G. Hansen and Charles J. Gatchell
Contributors: Gatchell, Charles J. , joint author; United States. Forest Service; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: USDA Forest Service research paper NE -- 408
Publisher: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1978
Place of publication: Broomall, Pa
Language: eng
Subjects: Joinery