punctuation - husband-and-wife team or husband and wife team?

Referring to a sentence from an online magazine:

"Lonely Planet was started in 1975, when the British hippie husband-and-wife team Maureen and Tony Wheeler self-published a guide to cheap travel in Southeast Asia."

I have noticed that in other resources also: that "husband-and-wife" team is used instead of "husband and wife" team.

What is the right usage?