APA (7th ed.) Citation

Fremantle, C., & Boal, L. F. (1993). On attention: Talks, essays and letters based on the ideas of G.I. Gurdjieff (First edition.). Indications Press.

Chicago Style (17th ed.) Citation

Fremantle, Christopher, and Lillian Firestone Boal. On Attention: Talks, Essays and Letters Based on the Ideas of G.I. Gurdjieff. First edition. Denville, NJ: Indications Press, 1993.

MLA (9th ed.) Citation

Fremantle, Christopher, and Lillian Firestone Boal. On Attention: Talks, Essays and Letters Based on the Ideas of G.I. Gurdjieff. First edition. Indications Press, 1993.