It is common to cite studies by referring to the author’s last name. For most names, this is easy. For instance, if Smith published a study in 2013, we can say “Smith’s (2013) study.”
But what happens when the person’s last name ends with the letter s, like the name Spears? Should it be “Spears’ (2013) study” or “Spears’s (2013) study”?
You might be surprised, but the correct version is Continue reading Do You Add an Extra “s” After the Apostrophe for Names that End in “s”?