APA (7th ed.) Citation

Author of The whole duty of man. (1720). The whole duty of prayer: Containing devotions for every day in the week, and for several occasions, ordiany [sic] and extraordinray [sic]. By the author of The whole duty of man (The twentieth edition.). Printed for the booksellers of London and Westminster.

Chicago Style (17th ed.) Citation

Author of The whole duty of man. The Whole Duty of Prayer: Containing Devotions for Every Day in the Week, and for Several Occasions, Ordiany [sic] and Extraordinray [sic]. By the Author of The Whole Duty of Man. The twentieth edition. [London?]: Printed for the booksellers of London and Westminster, 1720.

MLA (9th ed.) Citation

Author of The whole duty of man. The Whole Duty of Prayer: Containing Devotions for Every Day in the Week, and for Several Occasions, Ordiany [sic] and Extraordinray [sic]. By the Author of The Whole Duty of Man. The twentieth edition. Printed for the booksellers of London and Westminster, 1720.

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