APA
Tulip J., . (2000). My First Book Of Numbers. London: Brimax.
Chicago
Tulip Jenny, . 2000. My First Book Of Numbers. London: Brimax.
Harvard
Tulip J., . (2000). My First Book Of Numbers. London: Brimax.
MLA
Tulip Jenny, . My First Book Of Numbers. London: Brimax. 2000.