Book by William Edward Lunt published in 1934
https://archive.org/details/papalrevenuesinm0001lunt
The section titled "Fiscal Administration", Pages 1-51, details the structure and history of the papal camera in terms of the different roles and responsibilities of its members and offices. Notably, it remarks that the camera had judiciary responsibilities similar to the Chambre des Comptes (France) and Exchequer (England). Another interesting remark is that the Avignon Papacy and the internal schism that resulted from it contributed directly to revenue losses, which the Papacy compensated for by expanding Indulgences and Chancery taxes after re-establishing itself in Rome.
The book then goes on to dedicate a chapter to each type of revenue obtained by the church and its historical relevance during different papal periods:
The patrimonies and the States of the Church
The census of protected and exempt ecclesiastical foundations
Tribute
Peter's pence
Income taxes
Subsidies
Services
Visitation tax
Annates
Fruits during vacancies
Fruits wrongfully received
Quindennia
Spoils
Procurations
Indulgences
Legacies for the Holy Land and for warfare against the infidels
Chancery taxes
Compositions
Oblations
Gift and legacies
Profits of jurisdiction
Sale of offices