Quotation From A Book
In your speech if you cite some information from a book, you should give complete name of the book title and name of the author. Sometimes you may also give specific page number. For example, you may say "Mr XYZ, the author of ABC of Style said,and I quote that," and then you narrate exactly what the writer has written in their book.
Direct Quotation of Person
If you cite some words that a known person has once said, but they are not from a written source, you can say "As great boxer ABC puts it," and say what he says changes in modern boxing rules.
Citation from Periodicals
If you are taking some information from a printed magazine or newspaper, you should name the title of the magazine and if possible the date/month of its issues. For example, you may say "ABC of Style magazine in its January issue wrote," and narrate exactly what the magazine had written. The same goes for newspaper.
Quoting A Journal
Citation from a journal is different from magazine and newspaper. If you take some information from a journal, you should include the writer's name first and then title and issue month or date of it. For example, you may say "Mr. ABC in January issue of XYZ of Science writes," and then say what he has written.
While citing a website you will have the name of a organisation, and not its website address, which is rather lengthy sometimes. For example, you can say "XYZ Society includes information," and then narrate that information. In case of a news website you can say "XYZ in their February 4 editorial said," and say what was written on the website.