Josiah Warren works? So I'm trying to make an archive/library of works from different mutualists/individualist anarchists and I'm having trouble working some things out on Warren. I have:

Equitable Commerce

True Civilization an Immediate Necessity and the Last Ground of Hope for Mankind

True Civilization: A Subject of Vital Importance

Practical Applications of the Elementary Principles or True Civilization

A few questions. Are Immediate Necessity and Subject of Vital Importance two seperate books? Does one come before the other? I know Practical Applications claims to be the third volume of True Civ, so I'm wondering if these three make the whole series. 

Also just wondering if there's anything important I'm missing? 

Thanks.