<p>Okay, I e-mailed Rogawski about his book and here is his reply:</p>
<p>“I wrote just one book called “Calculus” with 18 chapters, that includes both single and multivariable calculus. Since students may not need the entire text (they may have already taken single variable calc, or perhaps they don’t intend to take multivariable),the publisher created three versions:“Calculus” - all 18 chapters"Single Variable Calculus” - chapters 1 through 12 “Multivariable Calculus” - chapters 11 - 18 So if you’re just taking 32A and/or 32B, all you needis “Multivariable Calculus”.Or if you’re just taking 31A and/or 31B, all you needis “Single Variable Calculus”."</p>