APA-viite (7. p.)

Groot, H. C. (2011). The peace corps - 50 years later: Some personal reminiscences. Bulletin of the American Historical Collection.

Chicago-viite (17. p.)

Groot, Hans C. "The Peace Corps - 50 Years Later: Some Personal Reminiscences." Bulletin of the American Historical Collection 2011.

MLA-viite (9. p.)

Groot, Hans C. "The Peace Corps - 50 Years Later: Some Personal Reminiscences." Bulletin of the American Historical Collection, 2011.