Spence, W. P. (1991). Architecture: উবংরমহ ঙ্ ঊহমরহববৎরহম ঙ্ উৎধরিহম (6th ed.). Glencoe / McGraw-Hill.
Chicago Style (17. basım) AtıfSpence, William P. Architecture: উবংরমহ ঙ্ ঊহমরহববৎরহম ঙ্ উৎধরিহম. 6th ed. Peoria, IL: Glencoe / McGraw-Hill, 1991.
MLA (9th ed.) AtıfSpence, William P. Architecture: উবংরমহ ঙ্ ঊহমরহববৎরহম ঙ্ উৎধরিহম. 6th ed. Glencoe / McGraw-Hill, 1991.
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