Big contract-manufacturing companies such as SCI Systems, Flextronics International, and NatSteel Electronics make everything from Ericsson cell phones to Cisco networking equipment and Palm Pilots. "The boom in electronics, which has been surging, 25% annually, has enabled Guadalajara's economy to come roaring back. Since 1995, joblessness has dropped sharply. And most factory workers, even in industries other than electronics, now earn at least twice the minimum wage. (Clifford online)"

Answer:

Big contract-manufacturing companies such as SCI Systems, Flextronics International, and NatSteel Electronics make everything from Ericsson cell phones to Cisco networking equipment and Palm Pilots. "The boom in electronics, which has been surging, 25% annually, has enabled Guadalajara's economy to come roaring back. Since 1995, joblessness has dropped sharply. And most factory workers, even in industries other than electronics, now earn at least twice the minimum wage" (Clifford online).

Commentary:

With running text direct quotations, the in-text citation is placed inside the end punctuation—in this case, a period.