APA (7th ed.) Citation

Pollard,michael. (1991). Pioneers in history empire builders. Heinemann children's reference.

Chicago Style (17th ed.) Citation

Pollard,michael. Pioneers in History Empire Builders. Oxford: Heinemann children's reference, 1991.

MLA (9th ed.) Citation

Pollard,michael. Pioneers in History Empire Builders. Heinemann children's reference, 1991.

Warning: These citations may not always be 100% accurate.