In a survey of 134 pet owners, 72 said they own a dog, and 52 said they own a cat. 10 said they own both a dog and a cat? How many owned a dog but not a cat?

To find the number of people who own a dog but not a cat, we subtract the number of people who own both a dog and a cat from the total number of people who own a dog: 72 - 10 = <<72-10=62>>62. Answer: \boxed{62}.