APA
Thomson Reuters, . (2020). Purchaser's Formbook of Contracts and Agreements. London: Thomson Reuters.
Chicago
Thomson Reuters, . 2020. Purchaser's Formbook of Contracts and Agreements. London: Thomson Reuters.
Harvard
Thomson Reuters, . (2020). Purchaser's Formbook of Contracts and Agreements. London: Thomson Reuters.
MLA
Thomson Reuters, . Purchaser's Formbook of Contracts and Agreements. London: Thomson Reuters. 2020.