APA

Starkey D., Davies G. & Sphere Design Consultants. (2000). Explorers 1450 - 1550. London: Collins.

Chicago

Starkey Dinah, Davies Giles and Sphere Design Consultants. 2000. Explorers 1450 - 1550. London: Collins.

Harvard

Starkey D., Davies G. and Sphere Design Consultants. (2000). Explorers 1450 - 1550. London: Collins.

MLA

Starkey Dinah, Davies Giles and Sphere Design Consultants. Explorers 1450 - 1550. London: Collins. 2000.