Danny Dunn, Invisible Boy

From Author Wars - https://authorwars.com/books/danny-dunn-invisible-boy-3175092.html

Overview:

Title: Danny Dunn, Invisible Boy
Author: Hector Garrido
Year: 1979
Type: Cover Art

Variant Titles:

1982. Danny ja näkymätön poika

Editions/Publications:

Unknown. Danny Dunn, Invisible Boy (Unknown, Hector Garrido, Archway / Pocket Books, ISBN-10: 0671299840, $1.50, 146 pages, Paperback, Novel)