APA (7th ed.) Citation

Williams, A. (1850). Collected letters and arguments for and against protection. [publisher not identified].

Chicago Style (17th ed.) Citation

Williams, Albert. Collected Letters and Arguments for and Against Protection. [England?]: [publisher not identified], 1850.

MLA (9th ed.) Citation

Williams, Albert. Collected Letters and Arguments for and Against Protection. [publisher not identified], 1850.

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