Nr 183 - The foeto-placental unit. 1969. ; Nr 184 - Progress in endocrinology .Mexico ; Nr 186 - International Congress on Muscle Diseases. Milan 19-21 1969.
Treść karty:
512,184 Nr 183 - The foeto-placental unit. 1969. 512,510 Nr 184 - Progress in endocrinology .Mexico 1968. 1969. Nr 185 - brak 428,626 Nr 186 - International Congress on Muscle Diseases. Milan 19-21 1969.