France
Bucureşti
Wagner, Charles
Atelierele grafice I.V. Socecu
[1921]
Gonda László
Budapest
Kiadja a Népoktatási Központi
1873
Siebert, Horst
Iaşi
Institutul European
2001
9736112004
Nestor, George
Editura Didactică şi Pedagogică
1969
1977