How to Teach Elementary Arithmetic: Grube's Method of Teaching Arithmetic Explained, with a Large Number of Practical Hints and Illustrations (1878) (Hardcover)
How to Teach Elementary Arithmetic: Grube's Method of Teaching Arithmetic Explained, with a Large Number of Practical Hints and Illustrations (1878) (Paperback)
Geographische Charakterbilder in abgerundenten Gem?den: aus der L?der und V?kerdunde nach Musterdarstellungen der deutschen und ausl?dischen Litte (Paperback)
How to Teach Elementary Arithmetic: Grube's Method of Teaching Arithmetic Explained, with a Large Number of Practical Hints and Illustrations (1878) (Hardcover)