APA (7th ed.) Citation

Barrett, M., & Barrett, D. (2000). Star Trek : the human frontier / Michele Barrett and Duncan Barrett: The human frontier. Polity.

Chicago Style (17th ed.) Citation

Barrett, Michèle, and Duncan Barrett. Star Trek : The Human Frontier / Michele Barrett and Duncan Barrett: The Human Frontier. Oxford: Polity, 2000.

MLA (9th ed.) Citation

Barrett, Michèle, and Duncan Barrett. Star Trek : The Human Frontier / Michele Barrett and Duncan Barrett: The Human Frontier. Polity, 2000.

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