APA (7th ed.) Citation

Keir, E., & Keir, S. H. Interesting memoirs (The fourth edition.).

Chicago Style (17th ed.) Citation

Keir, Elizabeth, and Susanna Harvey Keir. Interesting Memoirs. The fourth edition.

MLA (9th ed.) Citation

Keir, Elizabeth, and Susanna Harvey Keir. Interesting Memoirs. The fourth edition.

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