APA (7th ed.) Citation

Garrick, D. (1776). Hearts of oak. [publisher not identified].

Chicago Style (17th ed.) Citation

Garrick, David. Hearts of Oak. [Edinburgh?]: [publisher not identified], 1776.

MLA (9th ed.) Citation

Garrick, David. Hearts of Oak. [publisher not identified], 1776.

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