MLA

Blith, Walter, fl. 1649. The English improver improved; or, The svrvey of hvsbandry svrveyed, discovering the improueableness of all lands ... All clearly demonstrated from principles of reason, ingenuity, and late, but most real experiences; and held forth ... under six peeces of improvement .... 1652. https://collections.library.yale.edu/catalog/11178845.

APA, 6th edition

Blith, Walter, fl. 1649. (1652)[The English improver improved; or, The svrvey of hvsbandry svrveyed, discovering the improueableness of all lands ... All clearly demonstrated from principles of reason, ingenuity, and late, but most real experiences; and held forth ... under six peeces of improvement ...]. https://collections.library.yale.edu/catalog/11178845.