APA (7th ed.) Citation

Owen, R. (1851). Letters on education, as it is and as it ought to be, addressed to the teachers of the human race in all countries. [publisher not identified].

Chicago Style (17th ed.) Citation

Owen, Robert. Letters on Education, as It Is and as It Ought to Be, Addressed to the Teachers of the Human Race in All Countries. [London?]: [publisher not identified], 1851.

MLA (9th ed.) Citation

Owen, Robert. Letters on Education, as It Is and as It Ought to Be, Addressed to the Teachers of the Human Race in All Countries. [publisher not identified], 1851.