Heyrick, E. (1836). Immediate, not gradual abolition, or, An inquiry into the shortest, safest and most effectual means of getting rid of West Indian slavery ([2nd ed.].). Philadelphia: Philadelphia Ladies' Anti-slavery Society.

Heyrick, Elizabeth. Immediate, Not Gradual Abolition, Or, An Inquiry Into the Shortest, Safest and Most Effectual Means of Getting Rid of West Indian Slavery. [2nd ed.]. Philadelphia: Philadelphia Ladies' Anti-slavery Society, 1836.

Heyrick, Elizabeth. Immediate, Not Gradual Abolition, Or, An Inquiry Into the Shortest, Safest and Most Effectual Means of Getting Rid of West Indian Slavery. [2nd ed.]. Philadelphia: Philadelphia Ladies' Anti-slavery Society, 1836.