APA (7 ম সংস্করণ) উদ্ধৃতি

Spry, A. H. (1982). Principles of cleaning masonry buildings: A guide to assist in the cleaning of masonry buildings. Australian Council of National Trusts : National Trust of Australia (Victoria).

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Spry, Alan H. Principles of Cleaning Masonry Buildings: A Guide to Assist in the Cleaning of Masonry Buildings. Melbourne: Australian Council of National Trusts : National Trust of Australia (Victoria), 1982.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Spry, Alan H. Principles of Cleaning Masonry Buildings: A Guide to Assist in the Cleaning of Masonry Buildings. Australian Council of National Trusts : National Trust of Australia (Victoria), 1982.