"How Pine Trees Reproduce has some exciting scenes and some little known information on a subject few of us know much about. It could be a dull film, but Dr. Harlow's skill with camera and scissors has produced a most informative result" PSA Journal, Sept. 1964, 51.
According to WorldCat there is also a videotape copy at the Lebanese American University Libraries.
Produced for Encyclopedia Britannica Films.
Business Screen Magazine, No. 8, Vol. 25, 27.
Henry G. Bennett Memorial Library, Southeastern Oklahoma State University.