APA

Peto V., . (2017). My first shapes. London: Dorling Kindersley Limited.

Chicago

Peto Violet, . 2017. My first shapes. London: Dorling Kindersley Limited.

Harvard

Peto V., . (2017). My first shapes. London: Dorling Kindersley Limited.

MLA

Peto Violet, . My first shapes. London: Dorling Kindersley Limited. 2017.