General format : C-S and C-N: Author(s). Title of book. Edition number (if any).
Place of publication: publisher name; date of publication
[date updated; date accessed]. Notes (the URL).
N-Y: Author(s). Date of publication. Title of book.
Edition number (if any). Place of publication: publisher name;
[date updated; date accessed]. Notes (the URL).
The 'Notes' can include the URL or other electronic address of the item.