Gallardo, J. C., Kálnay, A. J., Stec, B. A., & Toledo, B. P. (1966). Philips' Lorentz-covariant localizd states and extended-type position operator. s.n.].
Chicago Style (17th ed.) CitationGallardo, Juan Carlos, Andrés José Kálnay, Belkis A. Stec, and B. P. Toledo. Philips' Lorentz-covariant Localizd States and Extended-type Position Operator. [S.l.: s.n.], 1966.
MLA (9th ed.) CitationGallardo, Juan Carlos, et al. Philips' Lorentz-covariant Localizd States and Extended-type Position Operator. s.n.], 1966.