diff --git a/calendar/teachingdates/app.py b/calendar/teachingdates/app.py
index 45f8565..1b2bb7b 100644
--- a/calendar/teachingdates/app.py
+++ b/calendar/teachingdates/app.py
@@ -21,9 +21,11 @@
             print("{prog}: debug: paper config: {c}".format(
                 prog=PROG, c=dates_config.get_paper_config()))
         cal = calendars.TeachingCalendar.from_configuration(dates_config)
-        print("Period = {p}".format(p=args.period))
-        print(cal.calendar())
-        print(cal.lecture_dates())
+        if args.debug:
+            print("Calendar: {cal}".format(cal=cal.calendar()))
+            print("Lectures: {lec}".format(lec=cal.lecture_dates()))
+        for c in cal.render(args.style, args.format):
+            print(c)
 
     except configuration.ConfigurationError as e:
         print("{prog}: error: failed to load configuration from "