There are many times when photo credits have no direct reference to their corresponding photos located somewhere in the print. How it one to determine which credit to omit?
Also what if (as in our case) you have a credit citation (a copyright) right below the photo but no caption for that photo? Based on your answer and also the way Rule 6.21a and 9.5.4 read, it is impled we are to omit the photo when there is no caption and it is not referenced in print. Ultimaly requiring us to omitting the credit as well. Is this a correct interpretation?