Complex sentence: Apart from his poetry, he published a short novel, "A Hundred Pounds", the libretto of an opera, and a few poetry pamphlets not already mentioned are listed in Percival Serle's "Bibliography of Australasian Poetry and Verse".
Split into simpler sentences: Apart from his poetry, he published a short novel, "A Hundred Pounds" and the libretto of an opera. A few poetry pamphlets not already mentioned are listed in Percival Serle's "Bibliography of Australasian Poetry and Verse".