Use a custom URL to get a customized printable version of Google Calendar

Question

I want to print a week's worth of Google Calendar events from the command line. I figure using https://www.google.com/calendar/printable rather than some API is the easiest way to do that. I need some help with the arguments though. In the command below, what do each of the arguments mean?

https://www.google.com/calendar/printable?mode=MONTH&wkst=1&hl=en&pgsz=letter&dates=20090801%2F20100531&[email protected]&ctz=%3Csomething%3E&[email protected]&pfs=NORMAL&po=AUTO&psdec=true&pbw=false&pjs=false&rand=%3Csomething%3E&pda=true

Where is the documentation I can read up concerning this?

Argument list:

mode=
wkst=
hl=
pgsz=
dates=
src=
ctz=
src=
pfs=
po=
psdec=
pbw=
pjs=
rand=
pda=