Editing Abacus (architecture) (section)

==References==
* {{Cite encyclopedia |year=1962 |title=abacus |encyclopedia=The New Century Classical Handbook |publisher=Appleton-Century-Crofts, Inc. |location=New York, NY |editor-last=Avery |editor-first=Catherine A. |lccn=62-10069}}
* {{Cite encyclopedia |year=1993 |title=abacus |encyclopedia=Shorter Oxford English Dictionary on Historical Principles |publisher=Oxford University Press |location=Oxford, UK |url=https://archive.org/details/shorteroxfordeng00will_0 |editor-last=Brown |editor-first=Lesley |edition=5th |volume=2: A-K |isbn=978-0-19-860575-1 |url-access=registration}}
* {{Cite book |last=Cruickshank |first=Dan |title=[[Sir Banister Fletcher's A History of Architecture]] |publisher=Architectural Press |year=1996 |isbn=0-7506-2267-9 |editor-last=Fletcher |editor-first=Banister |edition=20th |editor-last2=Saint |editor-first2=Andrew |editor-last3=Frampton |editor-first3=Kenneth |editor-last4=Jones |editor-first4=Peter Blundell}}
* {{Cite book |year=1955 |title=The Modern Building Encyclopaedia: An Authoritative Reference to All Aspects of the Building and Allied Trades |publisher=Philosophical Library |location=New York, NY |editor-last=Kay |editor-first=N. W. |lccn=55013816}}{{full citation needed|date=May 2024}}
* {{Cite encyclopedia |year=2000 |title=abacus |encyclopedia=The Columbia Encyclopedia |publisher=Columbia University Press |location=New York, NY |url=https://archive.org/details/columbiaencyclop00laga |editor-last=Lagassé |editor-first=Paul |edition=6th |isbn=0-7876-5015-3 |lccn=00-027927 |url-access=registration}}