Organic Chemistry: Hexagonal Graph Paper Notebook, 160 pages, 1/4 inch hexagons (Hexagonal Graph Paper Notebooks, Band 4) : Necessities, The Bear: Amazon.de: Bücher
Amazon.com : BENZNOTE, Spiral Notebook, for Organic and Biochemistry, 8-1/2" x 11", Hexagonal Graph Rule, Green Lined, 3-Hole Punched, Perforated Edges, 112 Pages : Office Products