Gerhard Kirsten

title		ISBN-13 (ISBN-10)	year of publica- tion	other author(s)
Ericas of South Africa		978-0-9583154-3-2 (0-9583154-3-4)	1995	Dolf Schumann
Grammatica italiana per tutti		978-3-12-526220-1 (3-12-526220-8)	2007	Barbara Mack