APA
morris n., bull s., . (1998). first book of shapes and colours. china: dempsey parr.
Chicago
morris neil, bull susanne, . 1998. first book of shapes and colours. china: dempsey parr.
Harvard
morris n., bull s., . (1998). first book of shapes and colours. china: dempsey parr.
MLA
morris neil, bull susanne, . first book of shapes and colours. china: dempsey parr. 1998.