Schade, H., & Sheppard, E. H. (1964). Patents at a glance: Survey of substantive law and formalities in 45 countries. C. Heymanns.
Dyfyniad Arddull ChicagoSchade, Hans, and E. H. Sheppard. Patents at a Glance: Survey of Substantive Law and Formalities in 45 Countries. Munich,: C. Heymanns, 1964.
Dyfyniad MLASchade, Hans, and E. H. Sheppard. Patents at a Glance: Survey of Substantive Law and Formalities in 45 Countries. C. Heymanns, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.