APA (7th ed.) Citation

Ptak, R. (1999). China's seabourne trade with South and Southeast Asia: (1200 - 1750). Variorum.

Chicago Style (17th ed.) Citation

Ptak, Roderich. China's Seabourne Trade with South and Southeast Asia: (1200 - 1750). Aldershot [u.a.]: Variorum, 1999.

MLA (9th ed.) Citation

Ptak, Roderich. China's Seabourne Trade with South and Southeast Asia: (1200 - 1750). Variorum, 1999.