1.
|
Geneva, Switzerland : United International Bureaux for the Protection of Intellectual Property, 1968.
English | F 612 BOD.G(E) |
|
2.
|
Bogota : New York University, 1968.
English | F 612 VIL.P |
|
3.
|
Kln [et Al] : Heymann, 1971.
German | F 612 BOD.P |
|
4.
|
Geneva [Switzerland] : Birpi, 1968.
English | F 612 BOD.G(J) |
|
5.
|
London [England] : Aippi - British Group, 1956.
English | F 612 ELL.I |
|