Harbin, R. (1977). Origami 4: The art of paper-folding. Coronet books.
Chicago Edition CitationHarbin, Robert. Origami 4: The Art of Paper-folding. London: Coronet books, 1977.
MLA Edition CitationHarbin, Robert. Origami 4: The Art of Paper-folding. Coronet books, 1977.
Warning: These citations may not always be 100% accurate.