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).
芝加哥风格引文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.
MLA引文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.
警告：这些引文格式不一定是100％准确.