foreign key constraint to multiple tables

I have a table with a column that will join with one of several tables based
on the value of another column. I'm not sure if this column can be set as a
foreign key to any of these tables, may be simply bad design on my part. The
item_type_id column of a record of 'A' will reference one of the 'type'
table records depending upon what the value of the record's item_type column
is.

Is there a way to set the item_type_id column in Table A as a foreign key to
the other tables depending? Or would there be a better way to design this
schema?

TIA

CREATE TABLE ABC(
id SERIAL PRIMARY KEY,
item_type character varying(10) NOT NULL,
item_type_id INTEGER
);

CREATE TABLE typeA(
typeA_id SERIAL PRIMARY KEY
);

CREATE TABLE typeB(
typeB_id SERIAL PRIMARY KEY
);

CREATE TABLE typeC(
typeC_id SERIAL PRIMARY KEY
);

--
Kevin McCarthy
kemccarthy1(at)gmail(dot)com