MySQL Query with count and group by

I’ve got table a table with different records for publishers, each record have a date in a column of type timestamp.

id | id_publisher | date1           1      11/2012 03:09:40 p.m.2           1      12/2012 03:09:40 p.m.3           2      01/2013 03:09:40 p.m.4           3      01/2013 03:09:40 p.m.5           4      11/2012 03:09:40 p.m.6           4      02/2013 03:09:40 p.m.7           4      02/2012 03:09:40 p.m.

I need a count for number of records published by each publisher for each month. For example

Month    |  id_publisher         | num11/2012  |          1            |   111/2012  |          2            |   011/2012  |          3            |   011/2012  |          4            |   1.....02/2013  |          4            |   2

I tried with
select count(id) from raw_occurrence_record group by month(date), id_publisher;

but, it did not work.