1. An authority may issue such types of bonds as it may determine, including (without limiting the generality of the foregoing) bonds on which the principal and interest are payable:
(a) Exclusively from the income and revenues of the housing project financed with the proceeds of such bonds.
(b) Exclusively from the income and revenues of certain designated housing projects whether or not they are financed in whole or in part with the proceeds of such bonds.
(c) From its revenues generally.
2. Any of the bonds may be additionally secured by a pledge of any grant or contributions from the Federal Government or other source, or a pledge of any income or revenues of the authority, or a mortgage of any housing project, projects or other property of the authority.