(2013). Herding a hundred: Counting the sheep / by Donna Loughran ; content consultant, David T. Hughes, Mathematics Curriculum Specialist.
Cita Chicago (17th ed.)Herding a Hundred: Counting the Sheep / by Donna Loughran ; Content Consultant, David T. Hughes, Mathematics Curriculum Specialist. 2013.
Cita MLA (9th ed.)Herding a Hundred: Counting the Sheep / by Donna Loughran ; Content Consultant, David T. Hughes, Mathematics Curriculum Specialist. 2013.
Atenció: Aquestes cites poden no estar 100% correctes.