ノースロップ博士
By: Kuga Shunʾichi cho
Publisher: Mokuzai Shibai Jihōsha
Published: 1971
Place of publication: Ōsakashi
Language: jpn
Number of pages: 125
Subjects: Arbor Day; Tree planting
Other titles: Nōsuroppu Hakushi; Ryokka no onjin.