SB 10.43.30

ayaṁ cāsyāgrajaḥ śrīmān
 rāmaḥ kamala-locanaḥ
pralambo nihato yena
 vatsako ye bakādayaḥ
Word for word: 
ayam — this; ca — and; asya — His; agra-jaḥ — elder brother; śrī-man — the possessor of all opulences; rāmaḥ — Lord Balarāma; kamala-locanaḥ — the lotus-eyed; pralambaḥ — the demon Pralamba; nihataḥ — killed; yena — by whom; vatsakaḥ — Vatsāsura; ye — who; baka — Bakāsura; ādayaḥ — and others.
Translation: 
This lotus-eyed elder brother of His, Lord Balarāma, is the proprietor of all transcendental opulences. He has killed Pralamba, Vatsaka, Baka and other demons.
Purport: 

In fact two of the demons mentioned here were killed by Kṛṣṇa, not Balarāma. The reason for the mistake is that as news of Kṛṣṇa’s exploits spread among ordinary people, the facts became somewhat muddled. The same tendency can be observed in modern newspapers.