Cita APA (7th ed.)

Houghton Mifflin. The American heritage dictionary of the english language. Mn-Zugzwang (3a ed.).

Cita Chicago (17th ed.)

Houghton Mifflin. The American Heritage Dictionary of the English Language. Mn-Zugzwang. 3a ed.

Cita MLA (8th ed.)

Houghton Mifflin. The American Heritage Dictionary of the English Language. Mn-Zugzwang. 3a ed.