por George H. Englerth
By: por George H. Englerth
Series: Apuntes forestales tropicales -- no. 5; Tropical forest notes -- no. 5.
Published: 1960
Language: spa
Subjects: Wood poles; Preservation
Work titles: The service life of untreated posts in Puerto Rico after one year in test
Notes: Caption title.

"29 de septiembre de 1960."