206744 Post, E. J. (1962). Formal structure of electromagnetics: General covariance and electromagnetics. Amsterdam : North-Holland Pub Co..
Chicago-viite (17. p.)206744 Post, E J. Formal Structure of Electromagnetics: General Covariance and Electromagnetics. Amsterdam : North-Holland Pub Co., 1962.
MLA-viite (9. p.)206744 Post, E J. Formal Structure of Electromagnetics: General Covariance and Electromagnetics. Amsterdam : North-Holland Pub Co., 1962.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.