To all postmasters in Canada
[electronic resource] :
on and after the receipt of this order, postmasters are advised that all supplements or extras of newspapers, published in Canada ...
APA Citation
Great Britain. Post Office. (1852). To all postmasters in Canada: on and after the receipt of this order, postmasters are advised that all supplements or extras of newspapers, published in Canada ... [Québec?: s.n..
MLA Citation
Great Britain. Post Office. To All Postmasters In Canada: On And After the Receipt of This Order, Postmasters Are Advised That All Supplements Or Extras of Newspapers, Published In Canada ... [Québec?: s.n., 1852.
Warning: These citations may not always be complete (especially for serials).