發送短信 : Stable isotope geochemistry. (6th ed.)

  ______     ___      ____       ___      ______  
 /_____//   / _ \\   |  _ \\    / _ \\   /_   _// 
 `____ `   / //\ \\  | |_| ||  / //\ \\  `-| |,-  
 /___//   |  ___  || | .  //  |  ___  ||   | ||   
 `__ `    |_||  |_|| |_|\_\\  |_||  |_||   |_||   
 /_//     `-`   `-`  `-` --`  `-`   `-`    `-`'   
 `-`