Two to begin with :
Campbell, Helen.
Two to begin with : the true story of identical twins / by Helen Campbell. - Pittsburgh, PA : Dorrance Pub. Co., c1995. - 52 p. : ill. ; 23 cm.
0805937137
Campbell, Helen--Biography.
Campbell, Margaret--Biography.
Twins--Scotland.
Two to begin with : the true story of identical twins / by Helen Campbell. - Pittsburgh, PA : Dorrance Pub. Co., c1995. - 52 p. : ill. ; 23 cm.
0805937137
Campbell, Helen--Biography.
Campbell, Margaret--Biography.
Twins--Scotland.