Rezaei, A. A. (2000). The Validity of the Fog-Index of Readability. The International Journal of Humanities, 7(4), 17–27.
Rezaei, A. A. "The Validity of the Fog-Index of Readability", The International Journal of Humanities, 7, 4, 2000, 17–27.
Rezaei, A. A. (2000). 'The Validity of the Fog-Index of Readability', The International Journal of Humanities, 7(4), pp. 17–27.
Rezaei, A. A., "The Validity of the Fog-Index of Readability." The International Journal of Humanities, 7 4 (2000): 17–27,
Rezaei A. A. The Validity of the Fog-Index of Readability. The International Journal of Humanities. 2000;7(4):17–27.