(2005). PPA at 31: Gears for safer and more efficient ports. Malaya.
Chicago Style (17th ed.) Citation"PPA at 31: Gears for Safer and More Efficient Ports." Malaya 2005.
MLA引文"PPA at 31: Gears for Safer and More Efficient Ports." Malaya, 2005.
警告：這些引文格式不一定是100％准確.