APA (7th ed.) Citation

Mortimer, T. (1830). An introductory lecture. [publisher not identified].

Chicago Style (17th ed.) Citation

Mortimer, Thomas. An Introductory Lecture. [England?]: [publisher not identified], 1830.

MLA (9th ed.) Citation

Mortimer, Thomas. An Introductory Lecture. [publisher not identified], 1830.

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