In most web browsers, you can zoom in and out by holding down the Ctrl key (the Cmd key in OS X) and pressing either the "+" or "-" key at the same time.
Another option is to use the mouse: hold down the Ctrl key and move the mouse scroll wheel. To return to normal size, press the Ctrl and 0 keys at the same time.
By clicking on the record display you can now choose if you wish to print the full record or brief record.
When you choose the full record, the printout will contain all record data.
The brief record is a record prepared according to the ISBD (International Standard Bibliographic Description) rules.
All printing options are first displayed as a preview which enables you to decide if you actually wish to print the result (the result can be printed, e-mailed or saved as a file via the browser).