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or by method of exchange quotation

Quotation:
a statement of the current market price of a security or commodity;
A statement of price, terms of sale, and description of goods or services offered by a vendor to a prospective purchaser;
http://financepolicy.unc.edu/Glossary/index.htm
The actual price or the bid or ask price of either cash commodities or futures contracts.
http://www.futuresbuzz.com/glossary.html

Exchange:
(or bourse) is a highly organized market where (especially) tradable securities, commodities, foreign exchange, futures, and options contracts are sold and bought. Exchanges bring together brokers and dealers who buy and sell these objects. ...
http://en.wikipedia.org/wiki/Exchange_(organized_market)


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Note added at 1 hr (2013-05-13 13:22:51 GMT)
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"exchange quotation" image examples:
http://www.hlb.com.my/hlm/hlm/hlfx1.jsp?flag=hlfx1
http://www.europarl.europa.eu/news/en/headlines/content/2011...


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Note added at 2 hrs (2013-05-13 14:36:26 GMT)
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Yes, by means of = посредством или каким-то методом.