Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Apollo:

"

Once Apollo and Poseidon served under the Trojan king Laomedon in accordance with Zeus' words. Apollodorus states that the gods willingly went to the king disguised as humans in order to check his hubris.[1] Apollo guarded the cattle of Laomedon in the valleys of Mount Ida, while Poseidon built the walls of Troy.[2] Other versions make both Apollo and Poseidon the builders of the wall. In Ovid's account, Apollo completes his task by playing his tunes on his lyre.[citation needed]